Un-quarantine OAuth spec

Closes gitlab-org/quality/nightly#100

See merge request gitlab-org/gitlab-ce!29764

Remove support for app label matching

See merge request gitlab-org/gitlab-ce!29460

Removes database.yml.example

See merge request gitlab-org/gitlab-ce!29822

It's an empty file that was committed by accident on
https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/28565

From now on, only match on the annotations, instead of falling back to
legacy app label. This enables users to use the app label for other
purposes such as helm charts.

Cache feature flag names in Redis for a minute

Closes #63435

See merge request gitlab-org/gitlab-ce!29816

Adds docs for job collapsible sections

See merge request gitlab-org/gitlab-ce!29792

Update response code for container registry api bulk delete

Closes #62183

See merge request gitlab-org/gitlab-ce!29448

The bulk delete api endpoint for container registries can
only be called once per hour. If a user calls the endpoint more
than once per hour, they will now receive a 400 error with a
descriptive message.

Added IP restriction docs to groups

See merge request gitlab-org/gitlab-ce!29809

We saw on GitLab.com, the SQL query, `SELECT "features"."key" FROM
"features"` peaked at 2300 times per second.

We can quiet this down a bit by caching it in Redis for a minute.

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/63435

Revert concurrent pipeline creation for pipeline schedules

See merge request gitlab-org/gitlab-ce!29794

Add docs for Application Development Platform

See merge request gitlab-org/gitlab-ce!29765

Add Create Deep Dives to development docs

See merge request gitlab-org/gitlab-ce!29793

#57815 Changes for UltraAuth users

See merge request gitlab-org/gitlab-ce!28941

Disabled password authentication for the users registered using
omniauth-ultraauth strategy

Update dependency @gitlab/ui to ^4.3.0

See merge request gitlab-org/gitlab-ce!29800

See https://gitlab.com/gitlab-org/create-stage/issues/1 for more context

Use new Code Quality job definition in Auto DevOps

See merge request gitlab-org/gitlab-ce!29475

Look for new branches more carefully

Closes #59257

See merge request gitlab-org/gitlab-ce!29761

This commit reverts the previously introduced concurrent pipeline
schedule creation which was a viable solution for mitigating
inconsistent pipeline schedule by Sidekiq Memory Killer.

Rename TOKEN_TYPES to USER_TOKEN_TYPES

See merge request gitlab-org/gitlab-ce!29785

Move some quick actions feature specs to unit tests

Closes #60515

See merge request gitlab-org/gitlab-ce!28795

Move some feature specs for issues/merge requests quick actions
to unit tests. They are taking too long to run on the pipelines.

Backport approval MR rules report_type migration to CE

See merge request gitlab-org/gitlab-ce!29766