Enable Job-Token authentication in GitLab Core

Closes #37898

See merge request gitlab-org/gitlab!21120

Fix excessive Redis calls for new HSET/HMGET diffs cache

Closes #39133

See merge request gitlab-org/gitlab!21449

Remove conan package registry feature flag

See merge request gitlab-org/gitlab!21152

Remove the conan_package_registry feature flag
for general availability.

Add doc links to admin dashboard features

Closes #35368

See merge request gitlab-org/gitlab!21419

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

Closes https://gitlab.com/gitlab-org/gitlab/issues/37898

See merge request https://gitlab.com/gitlab-org/gitlab/merge_requests/21120

We were doing multiple hmget calls when reading
the cache. This neutralizes the problem by using
a memoized cache.

Prevent wrapping on diff line number to avoid perceived empty lines

See merge request gitlab-org/gitlab!19190

Improve projects dev fixtures

See merge request gitlab-org/gitlab!21423

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

Remove downstream pipeline connecting lines (1/3)

See merge request gitlab-org/gitlab!21196

Migrate two environment tests from karma to jest

See merge request gitlab-org/gitlab!21326

Many files must be formatted

Store mentioned users, groups, projects in DB using postgres array type

See merge request gitlab-org/gitlab!19088

When a note is created or updated it gets parsed and
users, groups, projects mentioned in the note are stored in respective
db table, or deleted when note is deleted.

Add new Elasticsearch E2E tests

Closes gitlab-org/quality/testcases#123 and gitlab-org/quality/testcases#122

See merge request gitlab-org/gitlab!21085

Adds coverage for global search and advanced search syntax.
Includes a new page object component and QA selectors.
Updates the existing ES E2E test to indicate that it requires admin.
Adds class method Runtime::API::Client.as_admin to make it easier
to use the API as an admin.
Adds the ability to use PUT via the API.

Adds support of 'tags' keyword in the default CI config

See merge request gitlab-org/gitlab!20747

Add type to broadcast messages

See merge request gitlab-org/gitlab!21038

Adds two different types of broadcast messages. Banner type is the
current design and will be kept shown on the top of the site, where
notification will be implemented in a separate frontend MR.

Create :correlation_id for `import_failures`

See merge request gitlab-org/gitlab!21395

Increase lower DAG `needs` limit from five to ten

See merge request gitlab-org/gitlab!21237

If the feature flag `ci_dag_limit_needs` is turned on for a GitLab
instance, a job can now depend on up to ten jobs instead of five

Implement and document alpha/beta_feature_available? method

See merge request gitlab-org/gitlab!20840

This adds and documents an `alpha_feature_available?` method to groups
and projects, and also documents the existing `beta_feature_available?`
method.

Add a 'Productivity Improvement.md' issue template

See merge request gitlab-org/gitlab!20794

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

Update the "Edit release" feature's version from 12.5 to 12.6 in the documentation

See merge request gitlab-org/gitlab!21425

Add endpoint for tracking report per person in a given group

See merge request gitlab-org/gitlab!18689

Consider :none as docs only change

Closes #37340

See merge request gitlab-org/gitlab!21144

Fix helm value used for review app default password secret name

Closes #39144

See merge request gitlab-org/gitlab!21469

Resolve "live_debug shouldn't open new page if CHROME_HEADLESS is false"

Closes #22205

See merge request gitlab-org/gitlab!20755

When using CHROME_HEADLESS=0 you can already have a logged-in session on
the page, so no need to open the user's browser as well

Merge branch '38044-qa-scheduled-master-pipeline-failure-notifications-are-not-being-sent-to-slack' into 'master'

Resolve "QA scheduled master pipeline failure notifications are not being sent to Slack"

Closes #38044

See merge request gitlab-org/gitlab!21160

With `allow_failure: true` on a prerequisite job,
when the job fails it would be considered a success.
This results in the `schedule:package-and-qa` job being skipped.

To work around this, we always run
`schedule:package-and-qa:notify-failure`,
and look for a failed `schedule:package-and-qa` in the pipeline.

Surface GitLab issue in error detail page

See merge request gitlab-org/gitlab!21019