Don't use rugged in Repository#refs_hash

Closes gitaly#880

See merge request gitlab-org/gitlab-ce!16827

Translate issuable sidebar

Closes #34416

See merge request gitlab-org/gitlab-ce!16663

Backport LFS File Locking API

Closes #35856

See merge request gitlab-org/gitlab-ce!16935

Check for keep-around commits once if target and source projects are the same

Closes #37439 and gitaly#1000

See merge request gitlab-org/gitlab-ce!16972

Add how to get the external ip of a cluster

Closes #42691

See merge request gitlab-org/gitlab-ce!16874

Search API

Closes #41763

See merge request gitlab-org/gitlab-ce!16878

Fixes #37439
Fixes gitaly#1000

This reduces the number of RefExists RPC call.

The refs hash is used to determine what branches and tags have a commit
as head in the network graph. The previous implementation depended on
Rugged#references. The problem with this implementation was that it
depended on rugged, but also that it iterated over all references and
thus loading more data than needed if for example the project uses CI/CD
environments, Pipelines, or Merge Requests.

Given only refs are checked the network cares about the GraphHelper#refs
method has no need to reject those, simplifying the method.

Closes gitlab-org/gitaly#880

Resolve "CI linter fails to work"

Closes #41209

See merge request gitlab-org/gitlab-ce!16922

Remove redundant pipeline stages from the database

Closes #41769

See merge request gitlab-org/gitlab-ce!16580

Merge branch '38265-stuckcijobsworker-wrongly-detects-cancels-stuck-builds-when-per-job-timeout-is-more-than-an-hour' into 'master'

Resolve "StuckCiJobsWorker wrongly detects, cancels 'stuck' builds when per-job timeout is more than an hour"

Closes #38265, #42196, and #42750

See merge request gitlab-org/gitlab-ce!16756

Resolve "Add domain field to Auto DevOps application setting"

Closes #38175

See merge request gitlab-org/gitlab-ce!16604

Resolve "I wonder how to leverage browser caching of my Gitlab pages?"

Closes #15037

See merge request gitlab-org/gitlab-ce!16829

Dynamic CI secret variables -- CE backport

See merge request gitlab-org/gitlab-ce!16842

Docs: replace product names

See merge request gitlab-org/gitlab-ce!16867

Converted search_autocomplete.js to use axios

See merge request gitlab-org/gitlab-ce!16943

Resolve "N+1 database queries on the snippets dashboard"

Closes #40755

See merge request gitlab-org/gitlab-ce!16944

Remove N + 1 issue for MergeRequests#show

Closes #37432 and gitaly#994

See merge request gitlab-org/gitlab-ce!16967

Update GITALY_SERVER_VERSION to 0.81.0

See merge request gitlab-org/gitlab-ce!16966

Move board list vue component

See merge request gitlab-org/gitlab-ce!16888

* commit '4457cf9d': (76 commits)

Conflicts:
	spec/services/ci/retry_build_service_spec.rb

This makes it possible to heavily optimize this migration, because we
need an outdated index to remove redundant stages faster.

Add QA specs for LDAP login

See merge request gitlab-org/gitlab-ce!16914

Run bin/qa from anywhere

See merge request gitlab-org/gitlab-ce!16833

Closes #40755.