Clean up schema of the "merge_requests" table

Closes #31825

See merge request gitlab-org/gitlab-ce!15377

Resolve "`master` is broken due to `static-analysis`"

Closes #40335

See merge request gitlab-org/gitlab-ce!15481

Update pipeline status badge details docs

Closes #40316

See merge request gitlab-org/gitlab-ce!15483

Use slug as the prefix for the docs CI job preview URL

See merge request gitlab-org/gitlab-ce!15450

This adds various foreign keys and indexes to the "merge_requests" table
as outlined in https://gitlab.com/gitlab-org/gitlab-ce/issues/31825.

Fixes https://gitlab.com/gitlab-org/gitlab-ce/issues/31825

Changed validation error message on wrong milestone dates

Closes #38393

See merge request gitlab-org/gitlab-ce!15471

doc: schedules.md: fix only-and-except anchor link

See merge request gitlab-org/gitlab-ce!15473

Signed-off-by: Rémy Coutable <remy@rymai.me>

Fix conflict highlighting

See merge request gitlab-org/gitlab-ce!15463

Use axios instead of vue resource - step 1

See merge request gitlab-org/gitlab-ce!15339

Adds Rubocop rule for line break after guard clause

Closes #18040

See merge request gitlab-org/gitlab-ce!15188

Fix a wrong anchor to job permissions doc

See merge request gitlab-org/gitlab-ce!15478

Hide log size in mobile

Closes #40016

See merge request gitlab-org/gitlab-ce!15431

Merge branch '40300-cannot-list-tags-in-a-repository-mirror-when-hashed-storage-in-use' into 'master'

Fix Gitlab::Git::Repository#remote_tags using unexisting variable

Closes #40300

See merge request gitlab-org/gitlab-ce!15466

Document how to troubleshoot internal API calls

See merge request gitlab-org/gitlab-ce!15337

Signed-off-by: Rémy Coutable <remy@rymai.me>

Update CycleAnalytics seed to account for multiple issue assignees

Closes #40245

See merge request gitlab-org/gitlab-ce!15435

[ci skip]

iFoo

Remove executable bit from images for docs lint

See merge request gitlab-org/gitlab-ce!15468

Document when Groups API `/subgroups` endpoint introduced

Closes #40247

See merge request gitlab-org/gitlab-ce!15453

This was causing a docs lint failure in https://gitlab.com/gitlab-org/gitlab-ee/-/jobs/40901316.

Rollback to a safer place to stop

See merge request gitlab-org/gitlab-ce!15465

Fix project transfer with hashed-storage attachments

Closes gitlab-ee#4056

See merge request gitlab-org/gitlab-ce!15457

Restrict update column in batches for large tables

See merge request gitlab-org/gitlab-ce!15458

Conflicts used to take a `Repository` and pass that to
`Gitlab::Highlight.highlight`, which would call `#gitattribute` on the
repository. Now they use a `Gitlab::Git::Repository`, which didn't have that
method defined - but defining it on `Gitlab::Git::Repository` does make it
available on `Repository` through `method_missing`, so we can do that and both
cases will work.

Improved the design of the changed files dropdown

Closes #36687

See merge request gitlab-org/gitlab-ce!15367

add_column_with_default is implemented in terms of update_column_in_batches, but
update_column_in_batches can be used independently. Neither of these should be
used on the specified large tables, because they will cause issues on large
instances like GitLab.com.

This also ignores the cop for all existing migrations, renaming
AddColumnWithDefaultToLargeTable where appropriate.

Fix QA test subject address by configuring capybara

Closes gitlab-qa#113

See merge request gitlab-org/gitlab-ce!15446

Remove the selects when counting the last page

Closes #40266

See merge request gitlab-org/gitlab-ce!15456

Add request rate limits

Closes #30053

See merge request gitlab-org/gitlab-ce!14708

Merge branch '40230-groups-gitlab-org-labels-json-redirects-to-groups-gitlab-org-labels-json' into 'master'

Resolve "/groups/gitlab-org/labels.json redirects to /groups/gitlab-org/-/labels/.json"

Closes #40230

See merge request gitlab-org/gitlab-ce!15427