Remove `if:` argument in before_action and alike when `only:` is also used

Closes #55564

See merge request gitlab-org/gitlab-ce!24412

Adds a waitForMutation helper for VueX(CE backport)

See merge request gitlab-org/gitlab-ce!30186

Embed metrics charts in issues

See merge request gitlab-org/gitlab-ce!29691

See https://gitlab.com/gitlab-org/gitlab-ce/issues/30423

Order projects by name in the "Move issue" dropdown

See merge request gitlab-org/gitlab-ce!30778

This pagination is not used anywhere so there is no reason
to keep it. It seems the usage of offset_id was probably
removed in 90c60138

Fix syntax error in script

See merge request gitlab-org/gitlab-ce!30994

Markdown issues: Checkbox inside blockquote status won't be saved

See merge request gitlab-org/gitlab-ce!30952

Resolve "OAuth2 support with GitLab personal access token"

See merge request gitlab-org/gitlab-ce!30277

PATs are accepted using the OAuth2 compliant header
"Authorization: Bearer {token}" in order to allow for
OAuth requests while 2FA is enabled.

[ci skip]

Fix unreleased changelog "-30974-issue-search-by-number.yml"

See merge request gitlab-org/gitlab-ce!30979

Upload new Knapsack report instead of merging

Closes #64428

See merge request gitlab-org/gitlab-ce!30612

Handle trailing slashes when generating issue URLs

See merge request gitlab-org/gitlab-ce!30911

use the property of name_with_namespace instead of name for the new issue form in group boards

See merge request gitlab-org/gitlab-ce!30021

add a new attribute for name_with_namespace

prettier the changed code

Add info about mdl to documentation

See merge request gitlab-org/gitlab-ce!30792

Applies to issues_url and new_issue_url

Updates check_mentions_for_xss_spec to use admin token for creating the user

Closes gitlab-org/quality/staging#65

See merge request gitlab-org/gitlab-ce!30943

Documentation for email confirmation signup restriction

Closes #63060

See merge request gitlab-org/gitlab-ce!30968

Document all the available options for SAST

Closes gitlab-ee#10120

See merge request gitlab-org/gitlab-ce!30747

Port all info from:

- security-products/sast/blob/master/docs/README.md
- security-products/sast/blob/master/docs/analyzers.md

Resolve "Update email address on How to reset your root password docs"

Closes #64768

See merge request gitlab-org/gitlab-ce!30926

Fix unordered list spacing (part 2)

See merge request gitlab-org/gitlab-ce!30796

Correct the spacing of unordered markdown lists
in docs, to maintain standards of documentation,
in /user and others.

Standardize page objects use on CE Plan tests

See merge request gitlab-org/gitlab-ce!30962

Wiki Usage Ping for Create SMAU

See merge request gitlab-org/gitlab-ce!30864

This adds a counter to count page creation, which is reflected in the
usage-data we collect.

The number created is stored in Redis, avoiding DB access.

The leading slash will cause some not friendly command line behavier,
for example:

vim:
```
~/gitlab-ce/changelogs/unreleased $ vim -30974-issue-search-by-number.yml
VIM - Vi IMproved 7.4 (2013 Aug 10, compiled Jun 07 2019 15:35:43)
Unknown option argument: "-30974-issue-search-by-number.yml"
More info with: "vim -h"
```

git:
```
~/gitlab-ce/changelogs/unreleased $ git add -30974-issue-search-by-number.yml
error: unknown switch `3'
usage: git add [<options>] [--] <pathspec>...

    -n, --dry-run         dry run
    -v, --verbose         be verbose

    -i, --interactive     interactive picking
    -p, --patch           select hunks interactively
    -e, --edit            edit current diff and apply
    -f, --force           allow adding otherwise ignored files
    -u, --update          update tracked files
    -N, --intent-to-add   record only the fact that the path will be added later
    -A, --all             add changes from all tracked and untracked files
    --ignore-removal      ignore paths removed in the working tree (same as --no-all)
    --refresh             don't add, only refresh the index
    --ignore-errors       just skip files which cannot be added because of errors
    --ignore-missing      check if - even missing - files are ignored in dry run
```

There's no other unreleased changelog has a filename with leading slash,
so I think this one should be corrected.

cc !28302

There was an syntax issue here which caused it can't be parsed properly.

cc !28302

yaml-lint(https://www.npmjs.com/package/yaml-lint):
```
✖ unknown tag !<!28302> at line 4, column 1:
    author: Riccardo Padovani
    ^
```

Online YAML Parser:(https://yaml-online-parser.appspot.com/)
```
ERROR:

could not determine a constructor for the tag '!28302'
  in "<unicode string>", line 3, column 16:
    merge_request: !28302                           ...
                   ^
```

This is a first iteration to address the following issue:
https://gitlab.com/gitlab-org/quality/team-tasks/issues/168

Note: depends on
https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/30945

Refactor collapse issue comments end-to-end test

See merge request gitlab-org/gitlab-ce!30902

Refactor create issue end-to-end test

See merge request gitlab-org/gitlab-ce!30945

Fixes typo in developer documentation

See merge request gitlab-org/gitlab-ce!30964

Fix the project auto devops API

See merge request gitlab-org/gitlab-ce!30946