Improve migrations using triggers

Closes #36633

See merge request !13666

Fix new_sidebar.scss being out of date

See merge request !14035

Fix new navigation wrapping caret and increasing height

Closes #36821

See merge request !13967

Fix buttons with different height in merge request widget

Closes #37331

See merge request !14000

Increase the timeout before aborting a storage access attempt

See merge request !14023

Creates an icon only for the discussions and puts back the old SVG for CI status

Closes #37406

See merge request !14042

Fix problems sanitizing URLs with empty passwords

Closes gitlab-ee#3352

See merge request !14083

Fix a wrong `X-Gitlab-Event` header when testing webhooks

Closes #37288

See merge request !14108

Update docs for confidential issues

Closes #36352

See merge request !14117

Hide group title on sidebar collapse; use more generic class for titles

Closes #36589

See merge request !13777

Disable GitLab Project Import Button if source disabled

Closes #36882

See merge request !13789

Fix division by zero for blame age map

Closes #35441

See merge request !13803

Merge branch '36638-select-project-to-create-issue-button-is-disconnected-from-dropdown-button' into 'master'

Normalize styles for empty-state group-level new issue/MR combo button

Closes #36638

See merge request !13647

[ci skip]

Upgrade mail and nokogiri gems due to security issues

See merge request !13662

Upgrade mail and nokogiri gems due to security issues

See merge request !13662

Fix Live Comment XSS Vulnerability

See merge request gitlab/gitlabhq!2183

Merge 9-5-stable into security-9-5

See merge request gitlab/gitlabhq!2184

[9.5] Prevent a persistent XSS in the commit author block

See merge request gitlab/gitlabhq!2180

[ci skip]

Improve migrations / background migrations testing strategy

Closes #36303

See merge request !13589

This reverts commit 775cee73.

Clear schema cache after running tests for migrations

Closes #37086

See merge request !13870

This reverts commit 6d6223ec, reversing
changes made to cc781170.

Instrument MergeRequest#fetch_ref

See merge request !13980

Fixes the fly-out navigation flashing in & out

Closes #37022

See merge request !13929

Rollback changes made to signing_enabled.

Closes #37202

See merge request !13956

Remove closing external issues by reference error

Closes #36820

See merge request !13910

Update translation for zh-TW to remove percents

See merge request !13988

Fix "Merge when pipeline succeeds" button dropdown caret icon horizontal alignment

Closes #37194

See merge request !13965