Gem is updated from 2.8 to 2.10. [changelog][1]

[1]: https://github.com/seattlerb/flay/blob/master/History.rdoc

Previously the script checked only for 'Similar code', but flay will
tell users when IDENTICAL code is detected too. This should create a
commit will create a failing pipeline, and to check that it does this
commit is pushed.

Fixes #42628

Replace $.get in single file diff with axios

See merge request gitlab-org/gitlab-ce!16696

Replace $.post in label manager with axios

See merge request gitlab-org/gitlab-ce!16695

doc: Correct example responses in repository_files.md

See merge request gitlab-org/gitlab-ce!16754

Update index.md

See merge request gitlab-org/gitlab-ce!16733

Fix grape-route-helper route shadowing

See merge request gitlab-org/gitlab-ce!16781

Resolve "Missing space between edit and delete buttons in tag list"

Closes #41802

See merge request gitlab-org/gitlab-ce!16757

[ci skip]

Add noData empty state to Prometheus graphs

Closes #42558

See merge request gitlab-org/gitlab-ce!16777

Fix JIRA not working when a trailing slash is included

Closes #42494

See merge request gitlab-org/gitlab-ce!16748

Leaving a trailing slash in the context option causes the jira-ruby
gem to add an extra slash in HTTP requests to the URL, preventing
JIRA from working properly.

Closes #42494

Bringing in https://github.com/reprah/grape-route-helpers/pull/21 as a
monkey patch since the grape-route-helpers project seems to be abandoned

Fail static-analysis if there's output to stderr

Closes #41972

See merge request gitlab-org/gitlab-ce!16648

Return more consistent values for merge_status on MR API

Closes #20639

See merge request gitlab-org/gitlab-ce!16708

Replace $.post in edit blob with axios

See merge request gitlab-org/gitlab-ce!16693

Fix cache clear windows

Closes #42487

See merge request gitlab-org/gitlab-ce!16740

Resolve "Intermittent spec failure in spec/models/commit_spec.rb"

Closes #42553

See merge request gitlab-org/gitlab-ce!16768

Close and do not reload MR diffs when source branch is deleted

Closes #37775

See merge request gitlab-org/gitlab-ce!16690

Move mr_widget_merged into a vue file

Closes #42486

See merge request gitlab-org/gitlab-ce!16746

Don't allow Repository#log with limit zero

See merge request gitlab-org/gitlab-ce!16674

Merge branch '42521-docs-update-usage-of-force-option-when-running-the-restore-raketask' into 'master'

Resolve "Docs update usage of force option when running the restore raketask"

Closes #42521

See merge request gitlab-org/gitlab-ce!16759

[CE backport] Fix intermittently failed click in dropdown in QA

See merge request gitlab-org/gitlab-ce!16738

[CE backport] Fix intermittent clone failure in QA

See merge request gitlab-org/gitlab-ce!16739

Fix avatar icon missing when Gravatar is disabled

Closes #34733 and #38715

See merge request gitlab-org/gitlab-ce!16681

Create merge request factory

See merge request gitlab-org/gitlab-ce!15964

[CE backport] Fix intermittent QA error -- Expand button not bound to JS

See merge request gitlab-org/gitlab-ce!16737

[CE backport] Fix QA new project creation click on incorrect namespace

See merge request gitlab-org/gitlab-ce!16736

Replace $.post in awards handler with axios

See merge request gitlab-org/gitlab-ce!16685

Resolve "MR "Check out branch" button should be disabled when the source branch is deleted"

Closes #42255

See merge request gitlab-org/gitlab-ce!16631

Improve Nginx configuration files

See merge request gitlab-org/gitlab-ce!16605