This model and the corresponding table will be used for storing settings
specific to CI/CD, starting with the "group_runners_enabled" boolean.

The model is called ProjectCiCdSetting and not ProjectCiCdSettings. The
project exporter doesn't like plural model names as it uses "classify"
which turns those into singular (so "ProjectCiCdSettings" becomes
"ProjectCiCdSetting", producing an error if said class is undefined).

The initial work in this commit was done by Dylan Griffith, with most of
the migration work being done by Yorick Peterse.

Validate project path prior to hitting the database.

Closes #45247

See merge request gitlab-org/gitlab-ce!18322

Resolve "Pipeline view stages showing incorrectly"

Closes #40487

See merge request gitlab-org/gitlab-ce!18254

Embedded Snippets Support

Closes #8088

See merge request gitlab-org/gitlab-ce!15695

Resolve "skeleton placeholder on diff has white background"

Closes #44294

See merge request gitlab-org/gitlab-ce!17792

Deprecation warning for dynamic milestones

Closes #42336

See merge request gitlab-org/gitlab-ce!17505

Update custom issue tracker docs

See merge request gitlab-org/gitlab-ce!18375

Merge branch '45278-failing-current_settings_spec-rb-on-master-when-env-in_memory_application_settings-is-true-returns-an-in-memory-applicationsetting-object' into 'master'

Resolve "Failing current_settings_spec.rb on master (when ENV["IN_MEMORY_APPLICATION_SETTINGS"] is true returns an in-memory ApplicationSetting object)"

Closes #45278

See merge request gitlab-org/gitlab-ce!18388

Fix "Uncaught TypeError: Cannot read property 'getAttribute' of null"

See merge request gitlab-org/gitlab-ce!18358

Replace the `project/commits/comments.feature` spinach test with an rspec analog

See merge request gitlab-org/gitlab-ce!18356

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

Backport GitLab domain helper methods

See merge request gitlab-org/gitlab-ce!18376

Don't reset application settings checkboxes when save another section

Closes #45343

See merge request gitlab-org/gitlab-ce!18366

Allow `rake cache:clear` clearing pipeline status cache

Closes #44582

See merge request gitlab-org/gitlab-ce!18257

Display relevant browser console output when an RSpec test fails.

See merge request gitlab-org/gitlab-ce!18355

There are 2 problems with this spec:

1. It checks for default visiblity level however there is not code in
controller to handle such default. Same check can be performed on model
directly.
2. It passes empty application_setting hash while controller requires
application_setting not to be empty by using `require` with `permit`
Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Use stable docker image instead of latest

See merge request gitlab-org/gitlab-ce!18373

Update gitlab-svgs to 1.18.0

See merge request gitlab-org/gitlab-ce!18369

Resolve "Raw HTML is being shown on the MR page from Performance widget"

Closes #45353

See merge request gitlab-org/gitlab-ce!18370

[ci skip] Adds specs

Adds specs

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Closes #45247.

Replacing gollum libs for custom gitlab ones

See merge request gitlab-org/gitlab-ce!18343

Remove bogus '|' symbol

See merge request gitlab-org/gitlab-ce!18313