Improve documentation of SSRF protection

Closes #45057

See merge request gitlab-org/gitlab-ce!18532

Refactor OmniauthCallbacksController to remove duplication

Closes #26559

See merge request gitlab-org/gitlab-ce!16694

Warning when restore fails when data-dir is a moint point

Closes #19309

See merge request gitlab-org/gitlab-ce!18533

Added fuzzy file finder to web IDE

Closes #44841

See merge request gitlab-org/gitlab-ce!18323

Bump lograge to 0.10.0 and remove monkey patch

See merge request gitlab-org/gitlab-ce!18551

Replace find file project spinach tests with RSpec

See merge request gitlab-org/gitlab-ce!18528

[Backport] EE's Burndown chart for group milestone common code

See merge request gitlab-org/gitlab-ce!18511

Expose Deploy Token info as environment variables to CI/CD jobs

Closes #44447

See merge request gitlab-org/gitlab-ce!18414

Fix users not seeing labels from private groups when being a member of a child project

Closes #45463

See merge request gitlab-org/gitlab-ce!18544

Fix docs typo in Validate the .gitlab-ci.yml

Closes #45688

See merge request gitlab-org/gitlab-ce!18552

lograge 0.10.0 contains the `Location` query string fix in
https://github.com/roidrage/lograge/pull/241 among other minor changes:
https://github.com/roidrage/lograge/blob/master/CHANGELOG.md

Add Capybara debugging methods to docs

See merge request gitlab-org/gitlab-ce!18549

[ci skip]

Add changelog entry for updating doorkeeper

See merge request gitlab-org/gitlab-ce!18550

Update links to /ci/lint with a new project's ci/lint

Closes #45666

See merge request gitlab-org/gitlab-ce!18539

Resolve "Avatar URLs are wrong when using a CDN path and Object Storage"

Closes #44775

See merge request gitlab-org/gitlab-ce!18092

Update doorkeeper

Closes #45433 and #45647

See merge request gitlab-org/gitlab-ce!18543

https://gitlab.com/gitlab-org/gitlab-ce/issues/45433
and
https://github.com/doorkeeper-gem/doorkeeper/issues/1065

Resolve "Namespace factory is problematic"

Closes #42936

See merge request gitlab-org/gitlab-ce!18464

Resolve "Repository storages documentation URL moved"

Closes #45635

See merge request gitlab-org/gitlab-ce!18529

When `Errno::EBUSY` is raised during restore, this could indicate that
the directory being restored into is a mountpoint. In this case we
explain the user how to retry the restore.

Using a mountpoint as data directory causes issues when restoring, so
we need to mention this in the documentation.

Resolve "Skip setup of gitlab-shell, gitaly, ... for specs that don't need it."

Closes #44713

See merge request gitlab-org/gitlab-ce!18074

Added missing note for P1 priority and updated links

See merge request gitlab-org/gitlab-ce!18491

fix revoke header on deploy token docs

See merge request gitlab-org/gitlab-ce!18527