Gitaly FCL for updating GITALY_SERVER_VERSION in gitlab-org/gitlab

The automated update of GITALY_SERVER_VERSION in gitlab-org/gitlab has been stuck for almost 10 days now (since 2021-10-12): gitlab!72178 (closed)

In gitlab!72366 (merged) we've made numerous attempts fix the integration issues, but every time we bump the Gitaly version again, new issue(s) pop up.

Therefore we decided today in the team meeting to stop all merges into master until we have a new version of GITALY_SERVER_VERSION merged.

Reference: FCL

Steps

• Protected master to not accept any merges
• Get gitlab!72366 (merged) green and merged
• Make gitlab-qa pipelines less flaky: gitaly#3852 (closed) (is this a requirement to lift the FCL?)
• Close gitlab!72178 (closed) and delete release-tools/update-gitaly
• Get gitlab!72839 (merged) merged
• Close gitlab!72841 (closed) and delete release-tools/update-gitaly
• Raise protected state from master