Merge branch 'master' into develop

.github/workflows/release-artifacts.yml

CHANGES.md

debian/changelog

pyproject.toml

synapse/federation/transport/server/federation.py

synapse/handlers/federation.py

synapse/handlers/sliding_sync/__init__.py

synapse/http/site.py

synapse/media/thumbnailer.py

synapse/push/push_tools.py

synapse/rest/client/sync.py

synapse/storage/databases/main/state_deltas.py

tests/http/test_site.py

tests/rest/client/sliding_sync/test_rooms_required_state.py