* commit 'c9c544cda':
Remove `ChainedIdGenerator`. (#8123)
Switch the JSON byte producer from a pull to a push producer. (#8116)
Updated docs: Added note about missing 308 redirect support. (#8120)
Be stricter about JSON that is accepted by Synapse (#8106)
Convert runWithConnection to async. (#8121)
Remove the unused inlineCallbacks code-paths in the caching code (#8119)
Separate `get_current_token` into two. (#8113)
Convert events worker database to async/await. (#8071)
Add a link to the matrix-synapse-rest-password-provider. (#8111)