Treat empty markdown and html strings as valid cached text, not missing cache that needs to be updated

Resolve "updateEndpoint undefined on Issue page"

Closes #40715

See merge request gitlab-org/gitlab-ce!15698

Use Gitaly 0.59.0

See merge request gitlab-org/gitlab-ce!15795

Docs: fix typo

See merge request gitlab-org/gitlab-ce!15798

Update prometheus-client-mmap gem to highly optimized version

See merge request gitlab-org/gitlab-ce!15796

[CE] Fix message when pushing to Geo secondary

See merge request gitlab-org/gitlab-ce!15793

Fixed merge request locked icon size

Closes #40876

See merge request gitlab-org/gitlab-ce!15767

Merge branch '40761-remove-the-checkbox-for-starting-a-new-pipeline-in-auto-devops-settings' into 'master'

Resolve "Remove the checkbox for starting a new pipeline in Auto DevOps settings"

Closes #40761

See merge request gitlab-org/gitlab-ce!15714

Allow commenting on individual commits inside an MR

Closes #31847

See merge request gitlab-org/gitlab-ce!12148

+ change string concatenation to help with GC pressure.
+ fix metric producing incompatible label sets

Fix QA group creation by filling required fileds

See merge request gitlab-org/gitlab-ce!15786

Remove Rugged::Repository#empty?

Closes gitaly#699

See merge request gitlab-org/gitlab-ce!15622

Docs: refactor Pages index

See merge request gitlab-org/gitlab-ce!15411

Use Markdown styling for new project guidelines

Closes #40886

See merge request gitlab-org/gitlab-ce!15785

Docs: admin index

Closes #39688

See merge request gitlab-org/gitlab-ce!15724

the `ci_pipelines.sha` column is not the same type than the
`merge_request_diff_commits.sha` column (varchar, bytea)

add a spec for commit merge request diff notes

Don't set timeago title to what was already there.

See merge request gitlab-org/gitlab-ce!15780

Docs: add EEU tier to the landing page

See merge request gitlab-org/gitlab-ce!15719

CE backport of "ProtectedBranches API handles per user/group granularity"

See merge request gitlab-org/gitlab-ce!15747

Refactor banzai to support referencing from group context

See merge request gitlab-org/gitlab-ce!15766