Use 400 error instead of 500 on missing or malformed composer.json

See merge request gitlab-org/gitlab!44587

When publishing a composer package via the API, if
the composer.json file is missing or malformed, the
backend returns a 500 error. This commit return a
more appropriate 400 Bad Request instead.

Change MR file header dropdown title and tooltip

See merge request gitlab-org/gitlab!43886

Add hover highlights to CI config graph for needs jobs

See merge request gitlab-org/gitlab!44471

When a user hover a job in the ci config graph,
they will see their stage and jobs highlighted.

Add usage ping to count Static Site Editor views

See merge request gitlab-org/gitlab!44573

Switch back to upstream terser gem

See merge request gitlab-org/gitlab!45046

Move pipelines CSS to page page_bundles

See merge request gitlab-org/gitlab!44767

Improve merge_request GraphQL endpoint

See merge request gitlab-org/gitlab!44613

Fallback to denormalized metrics values if available
instead of calling for gitaly

Remove `ci_bridge_pipeline_details` feature flag

See merge request gitlab-org/gitlab!45036

Limit reindexing concurrency

See merge request gitlab-org/gitlab!44036

Use connectedCallback to initialize GlEmoji

See merge request gitlab-org/gitlab!44542

Update prerequisites doc for Pages

See merge request gitlab-org/gitlab!44821

Validate snippet repos when restoring

See merge request gitlab-org/gitlab!44904

We temporarily used a fork to get around a UTF-8 encoding issue with
LICENSE (https://gitlab.com/gitlab-org/omnibus-gitlab/-/issues/5716),
which was fixed in https://github.com/ahorek/terser-ruby/pull/6. We
switch back to the upstream library now that this has been resolved.

Full diff:
https://github.com/ahorek/terser-ruby/compare/1.0.1..1.0.2

Resolve live trace read race condition using a retry

See merge request gitlab-org/gitlab!44988

Re-architect job artifacts removal

See merge request gitlab-org/gitlab!39464

- Add database migration to create ci_deleted_objects table
- Add worker to removed objects
- Add scheduled worker to start regular workers

Merge branch '249516-in-the-dast-site-profile-and-scanner-profile-lists-the-delete-buttons-don-t-have-tooltips' into 'master'

Add tooltip to DAST scan profiles delete button

See merge request gitlab-org/gitlab!44876

Show labels from ancestor groups in MR analytics

See merge request gitlab-org/gitlab!44987

Changed tooltip to gl-tooltip for "Weight" on issues

See merge request gitlab-org/gitlab!44664

Related to: https://gitlab.com/gitlab-org/gitlab/-/issues/228973

Add unattended database migration option

See merge request gitlab-org/gitlab!44392

- Adds an unattended database migration option supporting the use of
  automation and orchestration wrappers that need an indicator for when
  a step has made changes to the remote system

Related https://gitlab.com/gitlab-org/gitlab-orchestrator/-/issues/198Signed-off-by: Robert Marshall <rmarshall@gitlab.com>

Improve merge error when pre-receive hooks fail in fast-forward merge

See merge request gitlab-org/gitlab!44843

When fast-forward merge is enabled, merges might fail due to a failed
pre-receive check (e.g. due to file locks, commit message push rules,
etc.) but the UI would only display:

```
Merge failed: pre-receive hook failed. Please try again.
```

While the raw message was logged in Sentry and in `exceptions_json.log`,
this kept users in the dark.

Gitaly prefaces the error response status from the `/internal/allowed`
API call with `GitLab:`, so we can use this to display the error to the
user. We now only fallback to a default if we do not have anything to
show. Now, users see a more informative message, such as:

```
Merge failed: Commit message does not follow the pattern
'MERGEME'. Please try again.
```

Relates to https://gitlab.com/gitlab-org/gitlab/-/issues/246816

Finish Moving Feature Flags to Core RUN AS-IF-FOSS

See merge request gitlab-org/gitlab!44642

Update feature flags documentation
Finish moving feature flags to core

Upgrades all the buttons in the admin dir

See merge request gitlab-org/gitlab!44991

Change links to markdownlint and Vale versions

See merge request gitlab-org/gitlab!45031

Docs: Add links to install methods page

See merge request gitlab-org/gitlab!45030

Project settings: Replace fa-chevron-down with SVG

See merge request gitlab-org/gitlab!45021

Add close button to issue, MR and epic sidebar labels

See merge request gitlab-org/gitlab!42703

Clicking on this button removes the label, and was added
to improve the UX of label removal.

Adds status to jobs, stages, and groups

See merge request gitlab-org/gitlab!43069