Add the `update_user_directory_from_worker` configuration option (superseding `update_user_directory`) to allow a generic worker to be designated as the worker to update the user directory. (#12654)

Co-authored-by: Shay <hillerys@element.io>

Otherwise it can take up to a minute for any in-flight `/send` requests to be retried.

Fixes vector-im/element-web#20788
Implements matrix-org/matrix-spec-proposals#3786

* Bump the HS startup timeout
* Log prefixes for more processes
* Bump the overall timeout

There's no guarantee that module callbacks will handle cancellation
appropriately. Protect module callbacks with read semantics from
cancellation and avoid swallowing `CancelledError`s that arise.

Other module callbacks, such as the `on_*` callbacks, are presumed to
live on code paths that involve writes and aren't cancellation-friendly.
These module callbacks have been left alone.

Signed-off-by: Sean Quah <seanq@element.io>

#12587 has fallen on the wrong side of the release cutoff to the rest of
the related PRs.

Signed-off-by: Sean Quah <seanq@element.io>

Fixes #12669

* Move `pympler` back into the `all` extras

Undoes a change I made in #12381. I can't fully remember my reasoning,
but this changed the contents of the debian packages in a backwards
incompatible way. We're not aware of anyone who's been bitten by this,
but we still want to fix it.

To the reviewer: please be convinced that the debian packages will still
contain pympler after this change.

* Debian changelog entry to keep the linter happy

Add the `notify_appservices_from_worker` configuration option (superseding `notify_appservices`) to allow a generic worker to be designated as the worker to send traffic to Application Services. (#12452)

Signed-off-by: Nicolas Werner <nicolas.werner@hotmail.de>

Co-authored-by: Richard van der Hoff <1389908+richvdh@users.noreply.github.com>