Fix long webhook URL overflow for custom integration

Closes #41040

See merge request gitlab-org/gitlab-ce!21668

Gitaly servers require the GitLab Shell secret

See merge request gitlab-org/gitlab-ce!21847

Fix broken link to modal component source

See merge request gitlab-org/gitlab-ce!21830

Enable frozen string in app/controllers/**/*.rb

See merge request gitlab-org/gitlab-ce!21736

Add Fog use_iam_profile option to docs

See merge request gitlab-org/gitlab-ce!21844

Add Gitlab::Database::Subquery.self_join to delete_all with limit

See merge request gitlab-org/gitlab-ce!21839

Update wiki upload documentation

See merge request gitlab-org/gitlab-ce!21815

Add webhook branch filtering docs

See merge request gitlab-org/gitlab-ce!21816

QA: Fix failure in merge_merge_request_from_fork_spec.rb

Closes #51657

See merge request gitlab-org/gitlab-ce!21817

Move the cloud-native-image trigger job into the test stage

See merge request gitlab-org/gitlab-ce!21819

Fixes Admin Runners table not wrapping the content

Closes #51549

See merge request gitlab-org/gitlab-ce!21802

`delete_all` doesn't support limit, so you'd need to subquery
that. And instead of subquerying with `where(id: query)`, it's better
to use an `INNER JOIN`. This method also works with MySQL, while
subquerying doesn't (without another layer of subquerying)

Reference:
https://stackoverflow.com/questions/17892762/mysql-this-version-of-mysql-doesnt-yet-support-limit-in-all-any-some-subqu/17892886#17892886

Resolve "Split admin settings into multiple sub pages"

Closes #44998

See merge request gitlab-org/gitlab-ce!21467

Fixed hidden truncated diff lines not showing when expanded

See merge request gitlab-org/gitlab-ce!21801

Lazy load xterm css custom colors file

Closes #44768

See merge request gitlab-org/gitlab-ce!21804

Document Review Apps

Closes #51201

See merge request gitlab-org/gitlab-ce!21574

While refactoring the table into a responsive one we did not account for wrapping issues.
This commit wraps some cells and truncates others.

Adds `section-5` class to the responsive tables CSS

Resolve "Link to file in Changes tab of MR no longer works for all files after incremental rendering improvement"

Closes #50347

See merge request gitlab-org/gitlab-ce!21727

Resolve "Link to file in Changes tab of MR no longer works for all files after incremental rendering improvement"

Explain the docs' CD, relating to the milestone the doc is set to vs online docs

See merge request gitlab-org/gitlab-ce!21737

Correct Gitaly config typo in update guides

See merge request gitlab-org/gitlab-ce!21821

Fix link to blog posts in docs

See merge request gitlab-org/gitlab-ce!21820

The 9.4 to 9.5 and 9.5 to 10.0 guides missed a closing backtick. This
was corrected in the 10.0 to 10.1 guide, from which subsequent guides
were written without the error.

Due to a missing `s`, a link to the blog archive
for releases was broken.

Delete container repository tags outside of transaction

Closes #51380

See merge request gitlab-org/gitlab-ce!21679

This is because the CNG pipeline now relies on the assets
compiled here in the gitlab:assets:compile job (It waits
up to 30 minutes for them)

Without this change, the cloud native job was holding up
the pipeline, preventing the assets compile job from being
run.

Fix rubocop Style/ZeroLengthPredicate

See merge request gitlab-org/gitlab-ce!21793

Relax the subject line requirements for commits

Closes gitlab-org/release/framework#16

See merge request gitlab-org/gitlab-ce!21811

Manually includes the xterm custom colors
on the 3 files that will need it: job log page,
job terminal page, environment terminal page

Reduces main CSS bundle

Re-enable legacy diff notes on merge request diffs

Closes #48873

See merge request gitlab-org/gitlab-ce!21652

Remove unused constant

See merge request gitlab-org/gitlab-ce!21810