Also adds Changelog entry

Clears the import related columns and code from the Project
model over to the ProjectImportState model

Don't use rugged write-ref anymore

See merge request gitlab-org/gitlab-ce!23286

Gracefully handle references with null bytes

Closes #54466

See merge request gitlab-org/gitlab-ce!23365

[Docs] Update issue boards images for recent cards redesign

See merge request gitlab-org/gitlab-ce!23321

Reword Knative cluster application

See merge request gitlab-org/gitlab-ce!23289

Eliminate duplicated words (for docs)

See merge request gitlab-org/gitlab-ce!23183

improve browse JUnit details

See merge request gitlab-org/gitlab-ce!23257

Fix broken links in CI help page

See merge request gitlab-org/gitlab-ce!22920

standardize periods & fix typo

See merge request gitlab-org/gitlab-ce!23294

CE port of 'Move EE specific code from Gitbab::Database into ee'

See merge request gitlab-org/gitlab-ce!23361

Fix handling of filenames with hash characters in tree view

Closes #54473

See merge request gitlab-org/gitlab-ce!23368

Addressable::URI interprets the `#` in a URI as a URI fragment
and does not escape it, but Rails has special helpers that treats
these as bona-fide characters that need to be escaped.

Closes https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/23368

`Rugged::Reference.valid_name?` used in
`Gitlab::GitRefValidator.validate` fails on strings containing null
bytes because it uses `StringValueCStr()`. Per
https://silverhammermba.github.io/emberb/c/:

Ruby’s String kinda corresponds to C’s char*. The simplest macro is
StringValueCStr() which returns a null-terminated char* for a
String. The problem here is that a Ruby String might contain nulls - in
which case StringValueCStr() will raise an ArgumentError!

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/54466

Fix deadlock on ChunkedIO

See merge request gitlab-org/gitlab-ce!23329

Rails 5 deprecation: Passing an argument to force an association to reload is now deprecated

See merge request gitlab-org/gitlab-ce!23337

Allow profiler to authenticate by stubbing users directly

Closes #54327

See merge request gitlab-org/gitlab-ce!23320

Backport of gitlab-ee!8470

See merge request gitlab-org/gitlab-ce!23150

Add events index on project_id and created_at

Closes #53992

See merge request gitlab-org/gitlab-ce!23354

Upgrade better_errors gem to 2.5.0

See merge request gitlab-org/gitlab-ce!23312

Fix Image Lazy Loader for some older browsers

Closes #54407

See merge request gitlab-org/gitlab-ce!23349

Override CI_COMMIT_REF_SLUG for QA branches

See merge request gitlab-org/gitlab-ce!23346

Use shelling out to git to write refs instead of rugged, hoping to
avoid creating invalid refs.

To update HEAD we switched to using `git symbolic-ref`.

CE port of "Move merge request approval settings"

See merge request gitlab-org/gitlab-ce!23157

The `gitlab:assets:compile` job isn't run for the QA branches, thus
there's no Docker image correspinding these branches in the registry.

By overriding `CI_COMMIT_REF_SLUG` to `master` for QA branches, the
`fetch-assets` job in the `omnibus-gitlab` pipeline will pull the
`master` assets Docker image.
Signed-off-by: NRémy Coutable <remy@rymai.me>

Update externalized strings from `/app/views/project/runners`

See merge request gitlab-org/gitlab-ce!23347

i18n: externalize strings from 'app/views/shared/members'

See merge request gitlab-org/gitlab-ce!23125

Some older browsers do not ship with isIntersecting, while they already
have IntersectionObserver support. We make use of `intersectionRatio`
now to fix the Lazy Loader for those browsers.

Batch load only data from same repository when lazy object is accessed

See merge request gitlab-org/gitlab-ce!23309

Signed-off-by: NTao Wang <twang2218@gmail.com>
Signed-off-by: NRémy Coutable <remy@rymai.me>

Cache project HEAD to prevent unnecessary Gitaly calls

See merge request gitlab-org/gitlab-ce!23307

Allow to store null variables

Closes #54379

See merge request gitlab-org/gitlab-ce!23299

CE Backport: Extract Gitlab::Prometheus::QueryVariables

See merge request gitlab-org/gitlab-ce!23335