This commit adds a few utility classes around colors. They
extend existing mixins, coming from gitlab-ui.

It also adds two new color variables (purple and purple light)
and classes to add support for hover state.

Merge branch '27796-fix-the-following-style-lint-errors-and-warnings-for-app-assets-stylesheets-pages-profile-scss' into 'master'

Fix style-lint errors and warnings for profile.scss

Closes #27796

See merge request gitlab-org/gitlab!20048

Resolve the stylelint-gitlab/utility-classes error by
removing the .description class in profile.scss and
replacing its usage in gpg_keys and keys views with
the .text-truncate utility class.

Analytics: Group and project dropdown enhancements

See merge request gitlab-org/gitlab!21302

Force clearing of deprecated cache key

See merge request gitlab-org/gitlab!21184

.

Adjust iframe csp for tracing page

See merge request gitlab-org/gitlab!21156

rules: for bridge jobs

See merge request gitlab-org/gitlab!19605

Allows for including or excluding bridge jobs via `rules:` to control
triggering of downstream (multi-project) Pipelines.

Update eslint-plugin-import from 2.16.0 to 2.18.2 (/spec/javascripts/vue_mr_widget)

See merge request gitlab-org/gitlab!21305

Update eslint-plugin-import from 2.16.0 to 2.18.2 (/spec/frontend/vue_shared)

See merge request gitlab-org/gitlab!21309

Update eslint-plugin-import from 2.16.0 to 2.18.2 (/spec/frontend/[m-r]*)

See merge request gitlab-org/gitlab!21313

Update eslint-plugin-import from 2.16.0 to 2.18.2 (/spec/frontend/[s-z]*)

See merge request gitlab-org/gitlab!21315

Update eslint-plugin-import from 2.16.0 to 2.18.2 (/spec/frontend/[s-z]*)

See merge request gitlab-org/gitlab!21318

Update eslint-plugin-import from 2.16.0 to 2.18.2 (/spec/javascripts/[j-n]*)

See merge request gitlab-org/gitlab!21321

Update eslint-plugin-import from 2.16.0 to 2.18.2 (/app/assets/javascripts/[a-b]*)

See merge request gitlab-org/gitlab!21327

Update eslint-plugin-import from 2.16.0 to 2.18.2 (/app/assets/javascripts/[e-i]*)

See merge request gitlab-org/gitlab!21329

Update eslint-plugin-import from 2.16.0 to 2.18.2 (/app/assets/javascripts/[c-d]*)

See merge request gitlab-org/gitlab!21328

New feature flag for Gitaly service

See merge request gitlab-org/gitlab!21178

Update eslint-plugin-import from 2.16.0 to 2.18.2 (/app/assets/javascripts/pages)

See merge request gitlab-org/gitlab!21357

Remove unnecessary debug status checks

See merge request gitlab-org/gitlab!21380

Abort rendering of security reports that aren't set up

See merge request gitlab-org/gitlab!20381

- This allows for passing a group/project to the dropdown via props

Add API endpoint to unpublish GitLab Pages

Closes #33880

See merge request gitlab-org/gitlab!19781

Refactored PagesController and pages API to use new service.

Fix duplicate spec files

See merge request gitlab-org/gitlab!21355

Related to https://gitlab.com/gitlab-org/gitlab/merge_requests/16336

Clarify 2FA QR scanning instructions

See merge request gitlab-org/gitlab!21199

Runtime::Logger defaults to reporting error messages, so we don't need
to check if QA_DEBUG is true when creating debug log messages (or any
other message severity below error). If QA_DEBUG is false the debug
messages won't be logged.

Clarify pipeline visibility details

See merge request gitlab-org/gitlab!21297

Add docs for API keyset pagination

See merge request gitlab-org/gitlab!21035

Clarify ModSecurity docs- rule engine disablement

See merge request gitlab-org/gitlab!21206

Update the modsecurity docs to provide more clear instructions
on disabling the rule processing engine.

Refactor code to substitute variables in Prometheus queries

See merge request gitlab-org/gitlab!19994

Create new service to do template variable replacement on the query
parameter of the Prometheus proxy API.

Add a `remote_mirrors` project API

See merge request gitlab-org/gitlab!21146

Fix failure in squash_merge_request_spec by reloading page if commit does not appear

Closes #37924

See merge request gitlab-org/gitlab!21292

Preload group ancestor to avoid N+1

See merge request gitlab-org/gitlab!20977