Fix https://github.com/matrix-org/synapse/issues/15836

Important crates such as `log` and `regex` have bumped theirs to 1.60.0
as well.

By restoring the rust cache before installing the project.

* Fully qualified docker image names for the main Dockerfile and Complement related.

* Fully qualified docker image names for Dockerfiles associated with building Debian release artifacts.

This one is harder and is separate from the other commit in case it wasn't correct or was unwanted. I decided to
do the expansion on the docker images in the Dockerfile itself, instead of the various source places that build
which distribution that is selected, as it would have been more invasive with the scripts breaking up the string
for tagging and such. This one is untested.

* Changelog

* Update docker/Dockerfile-workers

* Update docker/complement/Dockerfile

---------

Co-authored-by: reivilibre <olivier@librepush.net>

* Ditch dependabot changelog workflow

* Summarise dependabot commits in release script

* Changelog

* Update scripts-dev/release.py

Fix a bug introduced in Synapse v1.84.0 where workers do not start up when no `instance_map` was provided. (#15672)

* Fix #15669: always populate instance map even if it was empty

* Fix some tests

* Fix more tests

* Newsfile

Signed-off-by: Olivier Wilkinson (reivilibre) <oliverw@matrix.org>

* CI fix: don't forget to update apt repository sources before installing olddeps deps

* Add test testing the backwards compatibility

---------

Signed-off-by: Olivier Wilkinson (reivilibre) <oliverw@matrix.org>

Do an `apt update` before install packages.

See https://github.com/matrix-org/synapse/pull/15566#issuecomment-1543844104

Also check you can `pip install` in the old-deps CI job

* Bump netlify PR

* Manually cache mypy cache dir

cache cache cache cache cache cache cache cache cache cache

* Changelog

* Bump dawidd6/action-download-artifact from 2.26.1 to 2.27.0

Bumps [dawidd6/action-download-artifact](https://github.com/dawidd6/action-download-artifact) from 2.26.1 to 2.27.0.
- [Release notes](https://github.com/dawidd6/action-download-artifact/releases)
- [Commits](https://github.com/dawidd6/action-download-artifact/compare/7132ab516fba5f602fafae6fdd4822afa10db76f...246dbf436b23d7c49e21a7ab8204ca9ecd1fe615

)

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By inlining the typechecking job from backend-meta.

This seems to resolve odd errors (maybe due to caching?)
to have been seen on Dependabot PRs.

* Trust dtolnay/rust-toolchain

The author is a big deal in the Rust world and I'm happy to trust them.
I'm also bored of the dependabot updates tbh.

* Changelog

* Bump dawidd6/action-download-artifact from 2.26.0 to 2.26.1

Bumps [dawidd6/action-download-artifact](https://github.com/dawidd6/action-download-artifact) from 2.26.0 to 2.26.1.
- [Release notes](https://github.com/dawidd6/action-download-artifact/releases)
- [Commits](https://github.com/dawidd6/action-download-artifact/compare/5e780fc7bbd0cac69fc73271ed86edf5dcb72d67...7132ab516fba5f602fafae6fdd4822afa10db76f

)

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* Use setup-go instead of relying on 1.17 to exist

See https://github.com/actions/runner-images/issues/7276

* Changelog

* Bump peaceiris/actions-gh-pages from 3.9.2 to 3.9.3

Bumps [peaceiris/actions-gh-pages](https://github.com/peaceiris/actions-gh-pages) from 3.9.2 to 3.9.3.
- [Release notes](https://github.com/peaceiris/actions-gh-pages/releases)
- [Changelog](https://github.com/peaceiris/actions-gh-pages/blob/main/CHANGELOG.md)
- [Commits](https://github.com/peaceiris/actions-gh-pages/compare/bd8c6b06eba6b3d25d72b7a1767993c0aeee42e7...373f7f263a76c20808c831209c920827a82a2847

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Signed-off-by: Sean Quah <seanq@matrix.org>

Add developer documentation for the Federation Sender and add a documentation mechanism using Sphinx. (#15265)

Co-authored-by: Patrick Cloke <clokep@users.noreply.github.com>

Bump dtolnay/rust-toolchain from e12eda571dc9a5ee5d58eecf4738ec291c66f295 to fc3253060d0c959bea12a59f10f8391454a0b02d (#15304)

* Bump dtolnay/rust-toolchain

Bumps [dtolnay/rust-toolchain](https://github.com/dtolnay/rust-toolchain) from e12eda571dc9a5ee5d58eecf4738ec291c66f295 to fc3253060d0c959bea12a59f10f8391454a0b02d.
- [Release notes](https://github.com/dtolnay/rust-toolchain/releases)
- [Commits](https://github.com/dtolnay/rust-toolchain/compare/e12eda571dc9a5ee5d58eecf4738ec291c66f295...fc3253060d0c959bea12a59f10f8391454a0b02d

)

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* Allow running twisted trunk against other branches

I would like to do this so we can try Synapse's typechecking against a
specific branch that the project solicited tests for, see
https://mail.python.org/archives/list/twisted@python.org/message/GGO5JHA5S475AK6JZ3GCC3GIHGKQYM6Y/

* Changelog

As we use some nightly only options, e.g. to group and sort imports
consistently.

* Bump matrix-org/backend-meta from 1 to 2

Bumps [matrix-org/backend-meta](https://github.com/matrix-org/backend-meta) from 1 to 2.
- [Release notes](https://github.com/matrix-org/backend-meta/releases)
- [Commits](https://github.com/matrix-org/backend-meta/compare/v1...v2

)

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* Bump actions/checkout from 2 to 3

Bumps [actions/checkout](https://github.com/actions/checkout) from 2 to 3.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](https://github.com/actions/checkout/compare/v2...v3

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* Bump docker/login-action from 1 to 2

Bumps [docker/login-action](https://github.com/docker/login-action) from 1 to 2.
- [Release notes](https://github.com/docker/login-action/releases)
- [Commits](https://github.com/docker/login-action/compare/v1...v2

)

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* Bump dawidd6/action-download-artifact from 2.25.0 to 2.26.0

Bumps [dawidd6/action-download-artifact](https://github.com/dawidd6/action-download-artifact) from 2.25.0 to 2.26.0.
- [Release notes](https://github.com/dawidd6/action-download-artifact/releases)
- [Commits](https://github.com/dawidd6/action-download-artifact/compare/b59d8c6a6c5c6c6437954f470d963c0b20ea7415...5e780fc7bbd0cac69fc73271ed86edf5dcb72d67

)

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* Bump dawidd6/action-download-artifact from 2.24.3 to 2.25.0

Bumps [dawidd6/action-download-artifact](https://github.com/dawidd6/action-download-artifact) from 2.24.3 to 2.25.0.
- [Release notes](https://github.com/dawidd6/action-download-artifact/releases)
- [Commits](https://github.com/dawidd6/action-download-artifact/compare/bd10f381a96414ce2b13a11bfa89902ba7cea07f...b59d8c6a6c5c6c6437954f470d963c0b20ea7415

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Bump dtolnay/rust-toolchain from 25dc93b901a87e864900a8aec6c12e9aa794c0c3 to e12eda571dc9a5ee5d58eecf4738ec291c66f295 (#15101)

* Bump dtolnay/rust-toolchain

Bumps [dtolnay/rust-toolchain](https://github.com/dtolnay/rust-toolchain) from 25dc93b901a87e864900a8aec6c12e9aa794c0c3 to e12eda571dc9a5ee5d58eecf4738ec291c66f295.
- [Release notes](https://github.com/dtolnay/rust-toolchain/releases)
- [Commits](https://github.com/dtolnay/rust-toolchain/compare/25dc93b901a87e864900a8aec6c12e9aa794c0c3...e12eda571dc9a5ee5d58eecf4738ec291c66f295

)

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Bump dtolnay/rust-toolchain from 9cd00a88a73addc8617065438eff914dd08d0955 to 25dc93b901a87e864900a8aec6c12e9aa794c0c3 (#15060)

* Bump dtolnay/rust-toolchain

Bumps [dtolnay/rust-toolchain](https://github.com/dtolnay/rust-toolchain) from 9cd00a88a73addc8617065438eff914dd08d0955 to 25dc93b901a87e864900a8aec6c12e9aa794c0c3.
- [Release notes](https://github.com/dtolnay/rust-toolchain/releases)
- [Commits](https://github.com/dtolnay/rust-toolchain/compare/9cd00a88a73addc8617065438eff914dd08d0955...25dc93b901a87e864900a8aec6c12e9aa794c0c3

)

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* Skip testing PyPy wheels

One of the test builds on #15015 failed to install a pp38-* wheel
because it didn't have access to the openssl headers to build
`cryptography` from source. We don't run CI against PyPy so I'm going to
be a meanie and skip testing the wheels. (And I've no idea why 3.8 was
special in the first place, either.)

* Hack the name of the wheel so cibw can test it

I hate hate hate hate hate hate hate hate hate this

* Changelog

* Apply suggestions from code review

Co-authored-by: Patrick Cloke <clokep@users.noreply.github.com>

---------

Co-authored-by: Patrick Cloke <clokep@users.noreply.github.com>

Bump dtolnay/rust-toolchain from e645b0cf01249a964ec099494d38d2da0f0b349f to 9cd00a88a73addc8617065438eff914dd08d0955 (#14968)

Signed-off-by: Jason Little <realtyem@gmail.com>

* Bump docker/build-push-action from 3 to 4

Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 3 to 4.
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](https://github.com/docker/build-push-action/compare/v3...v4

)

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