Synapse now always sends key counts that are 0, so test for the actual 0
values instead of an empty map.

Synapse switched their format to something much shorter, so fix our
sanity check.

Synapse 1.28 requires all keys to be set.

Clang Format SPAAAAACES

As in MSC3231: https://github.com/matrix-org/matrix-doc/pull/3231

MSC3231: https://github.com/matrix-org/matrix-doc/pull/3231

Use attached image
Fix changes key
Missing stage
Fix tags for ci builds
Make lint
Use branch pipelines
Fix changes rule
Fix needs
Exit success after docker build
Try to fix postgres lockfile
Whitelist var run in container build
Make tests homeserver name generic