Revert "Revert accidental fast-forward merge from v1.49.0rc1"

.github/workflows/tests.yml

CHANGES.md

debian/changelog

docker/Dockerfile-workers

docker/conf-workers/healthcheck.sh.j2

docker/configure_workers_and_start.py

docs/SUMMARY.md

docs/development/room-dag-concepts.md

docs/media_repository.md

docs/modules/background_update_controller_callbacks.md

docs/modules/writing_a_module.md

docs/openid.md

docs/other/running_synapse_on_single_board_computers.md

docs/postgres.md

docs/sample_config.yaml

docs/templates.md

docs/usage/administration/admin_api/federation.md

docs/usage/administration/admin_faq.md

docs/usage/administration/database_maintenance_tools.md

docs/usage/administration/state_groups.md