This adds a Rubocop rule to enforce the use of
add_concurrent_foreign_key instead of the regular add_foreign_key
method. This cop has been disabled for existing migrations so we don't
need to change those.

This method allows one to create foreign keys without blocking access to
the source table, but only on PostgreSQL.

When creating a regular foreign key the "ALTER TABLE" statement used for
this won't return until all data has been validated. This statement in
turn will acquire a lock on the source table. As a result this lock can
be held for quite a long amount of time, depending on the number of rows
and system load.

By breaking up the foreign key creation process in two steps (creation,
and validation) we can reduce the amount of locking to a minimum.
Locking is still necessary for the "ALTER TABLE" statement that adds the
constraint, but this is a fast process and so will only block access for
a few milliseconds.

Only show MR widget graph if there are stages

Closes #27987

See merge request !9141

Replace teaspoon references with Karma

Closes gitlab-com/gitlab-docs#68

See merge request !9011

fixes frontend doc broken link

Closes #27783

See merge request !9120

Revert "Merge branch 'add-additional-checks-to-ca-data' into 'master'"

See merge request !9152

This reverts commit b7c5ca49, reversing
changes made to 9745c98b.

Fixes tooltips in mini pipeline graph

Closes #27963 and #28008

See merge request !9140

Fix job to pipeline renaming

Closes #28016

See merge request !9147

Small improvements for Cycle Analytics

See merge request !9126

Don't perform Devise trackable updates on blocked User records

Closes #27519

See merge request !8915

Removed duplicate "Visibility Level" label on New Project page

See merge request !8272

Optionally make users created via the API set their password

Closes #1051

See merge request !8957

* master:
  Remove orange caret icon from mr widget
  Add index to ci_trigger_requests for commit_id
  rspec_profiling: Discover the correct branch name in GitLab CI
  Show parent group members for nested group
  Updated protected branches dropdown image in docs
  Fix admin_labels_spec.rb transient failure
  Make sure our current .gitlab-ci.yml is valid
  Show Pipeline(not Job) in MR desktop notification
  Make min width smaller for user settings

Resolve "Add environment URL link to terminal page"

Closes #27336

See merge request !9107

Add index to ci_trigger_requests for commit_id

See merge request !9124

Nested groups members page

See merge request !9062

Remove orange caret icon from MR widget

Closes #27991

See merge request !9137

rspec_profiling: Discover the correct branch name in GitLab CI

See merge request !9134

Updated protected branches dropdown image in docs

See merge request !9138

Make min width smaller for user settings

See merge request !9112

* master:
  Fix admin_labels_spec.rb transient failure
  Make sure our current .gitlab-ci.yml is valid
  Show Pipeline(not Job) in MR desktop notification
  Remove a transient failure from spec/requests/api/groups_spec.rb
  Update PROCESS.md
  Update MergeRequest API state_event option documentation
  Rename issuable to IssueBase

Fix admin_labels_spec.rb transient failure

Closes #27855

See merge request !9135

Show Pipeline(not Job) in MR CI status desktop notification

Closes #27955

See merge request !9122

* master:
  Remove a transient failure from spec/requests/api/groups_spec.rb
  Update PROCESS.md
  Update MergeRequest API state_event option documentation

Make sure our current .gitlab-ci.yml is valid

See merge request !9125

* master:
  Remove a transient failure from spec/requests/api/groups_spec.rb

https://gitlab.com/gitlab-org/gitlab-ce/pipelines.json makes
a number of unindexed slow queries. This index should
speed things up.

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

Adds css for button's tooltips to have similar behavior.
Removes padding from mini graph table cell to guarantee stages don't break line on hover

Remove a transient failure from spec/requests/api/groups_spec.rb

Closes #27974

See merge request !9116