* ee/master: (112 commits)
  Resolve merge conflicts
  Fix pipeline quota link
  Show sub-nav under Merge Requests when issue tracker is non-default
  Revert "Fix registry for projects with uppercases in path"
  Fix registry for projects with uppercases in path
  Fix typo: NotImplemented -> NotImplementedError
  Move event icons into events_helper
  Reset New branch button when issue state changes
  Add link to environments on kubernetes.md
  Indent system notes on desktop screens
  Improve webpack-dev-server compatibility with non-localhost setups.
  Add changelog entry
  Fix recent searches icon alignment in Safari
  Use preload to avoid Rails using JOIN
  Fix NUMBER_OF_TRUNCATED_DIFF_LINES re-definition error
  Rename build minutes to pipeline minutes
  Remove IIFEs in boards_bundle.js
  Prepare for zero downtime migrations
  Fix filtered search input width for IE
  Fix the `gitlab:gitlab_shell:check` task
  ...

Resolve "Export CSV button should be inline with RSS button on mobile"

Closes #1878

See merge request !1637

Fix pipeline quota link

Closes #2158

See merge request !1648

Fix typo: NotImplemented -> NotImplementedError

See merge request !1634

Rename build minutes to pipeline minutes

Closes #2139

See merge request !1644

CE upstream: Thursday

Closes omnibus-gitlab#1993, gitlab-ce#30642, gitlab-qa#41, and gitlab-ce#30636

See merge request !1647

Fixes https://sentry.gitlap.com/gitlab/gitlabcom/issues/26786/

Remove IIFEs in boards_bundle.js

See merge request !1626

Remove IIFEs from files in cycle_analytics_bundle.js

See merge request !1627

Merge branch 'test-pg-mysql' into tmp

* test-pg-mysql:
  Properly use $BUNDLE_INSTALL_FLAGS
  Always use . and add more comments to prepare_build.sh
  Remove duplicated line
  Avoid Rails generating complicated query, see:
  Move variables back to where they are
  Just set GITLAB_DATABASE in the script
  Add # host for development and test as well
  We cannot use array in yaml variables
  Set profiler only for postgresql not mysql
  Use GITLAB_DATABASE: $CI_JOB_NAME[1] so that we
  Replace on host rather than socket, feedback:
  Only upload/download knapsack reports from pg
  Switch back to original repository
  Test all on EE, only master on CE, and -mysql branches
  Note that install knapsack later than bundle install
  Test both PostgreSQL and MySQL for the win.

Show sub-nav under Merge Requests when issue tracker is non-default

Closes #30779

See merge request !10658

This reverts commit 22726942.

Fix recent searches icon alignment in Safari

Closes #30642

See merge request !10606

Resolve "Disable the experimental GitLab elasticsearch indexer checkbox if it's not in $PATH"

Closes #2149

See merge request !1643

Add icon for approvals in MR

See merge request !1641

Port of use-avatars-in-activity-view to EE

See merge request !1632

Fix the `gitlab:gitlab_shell:check` task

Closes omnibus-gitlab#1993

See merge request !10645

Fix NUMBER_OF_TRUNCATED_DIFF_LINES re-definition error

See merge request !10664

Use avatars instead of icons in activity view

See merge request !10596

Update all instances of "fa-refresh" to "fa-spinner"

Closes #22714

See merge request !10490

Indent system notes on desktop screens

Closes #30858

See merge request !10667

Fix pdflab code including file paths

See merge request !10632

Update merged icon

See merge request !10635

Port of change-merged-icon to EE

See merge request !1640

Prepare for zero downtime migrations

See merge request !9976

Use preload to avoid Rails using JOIN

See merge request !10666

Reset New branch button when issue state changes

Closes #21292

See merge request !5962

Add link to environments on kubernetes.md

See merge request !10555