Fixed UI bugs with sticky diff header

Closes #54503

See merge request gitlab-org/gitlab-ce!23374

Fix minor grammar issues

See merge request gitlab-org/gitlab-ce!23372

Don't remove failed install pods

Closes #51792

See merge request gitlab-org/gitlab-ce!23350

Remove Site Statistic

Closes #53778

See merge request gitlab-org/gitlab-ce!23314

User#find_by_any_email to respect confirmed flag on secondary emails

See merge request gitlab-org/gitlab-ce!23181

We want to keep failed install pods around so that it is easier to debug
why a failure occured. With this change we also need to ensure that we
remove a previous pod with the same name before installing so that
re-install does not fail.

Another change here is that we no longer need to catch errors from
delete_pod! in CheckInstallationProgressService as we now catch the
ResourceNotFoundError in Helm::Api. The catch statement in
CheckInstallationProgressService was also probably too broad before and
should have been narrowed down simply to ResourceNotFoundError.

Add parseBoolean helper function

See merge request gitlab-org/gitlab-ce!23283

Update environments metrics empty state

Closes #51745

See merge request gitlab-org/gitlab-ce!23074

Upgrade kubeclient to 4.0.0

See merge request gitlab-org/gitlab-ce!23261

Expose External IP address for Knative's gateway

See merge request gitlab-org/gitlab-ce!23162

Remove notes index on updated_at

Closes #53988

See merge request gitlab-org/gitlab-ce!23356

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/54503

Convert "New menu" feature spec to a view spec

Closes #54157

See merge request gitlab-org/gitlab-ce!23355

Speed up "show GPG badge" feature specs

See merge request gitlab-org/gitlab-ce!23359

Resolve "Warn in Web Editor when user navigates away"

Closes #53728

See merge request gitlab-org/gitlab-ce!23004

Merge branch '52828-inconsistency-in-fonts-used-for-branch-name-and-create-from-fields-when-creating-new-branch-from-ui' into 'master'

Resolve "Inconsistency in fonts used for branch name and create from fields when creating new branch from UI"

Closes #52828

See merge request gitlab-org/gitlab-ce!23120

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

See
https://github.com/abonas/kubeclient/blob/v4.0.0/lib/kubeclient/common.rb#L395

[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

This approach caused many different problems as we tightened
the query execution timeout.

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

Bumps kubeclient and its dependencies from 3.1.0 to 4.0.0.

Fix deadlock on ChunkedIO

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