Fix formatting issue in fe_guide/vue.md.

See merge request !1894

Port of "remove-needless-bind-polyfills" to EE

See merge request !1855

Fix form_spec.rb failure relating to wait_for_ajax and unneeded commands

See merge request !1888

Move update_assignee_cache_counts to the service(port from CE)

See merge request !1887

Fix new branch dropdown position and size -- EE merge edition

Closes gitlab-ce#32096

See merge request !1875

Geo: Resync repositories that have been updated recently

See merge request !1826

Remove trailing comma

See merge request !1882

Security patches -> EE `master`

See merge request !1864

Improve Repository Sync (with new SystemHook)

Closes #1463 and #1493

See merge request !1789

Fix slash commands detection in comments

See merge request !1876

Fix flickering of system notes -- EE merge edition

Closes gitlab-ce#32087

See merge request !1873

Use new Commit#raw_deltas method

See merge request !1854

Fix https://gitlab.com/gitlab-org/gitlab-ce/issues/32096

Fix https://gitlab.com/gitlab-org/gitlab-ce/issues/32087

Easy reproduction:

 1. Edit an issue title
 1. Notice the system note added
 1. Switch to another tab and back (to fire the polling immediately)
 1. Notice the flicker (without this fix)

[EE] Resolve "Use consistent style for trailing commas"

See merge request !1796

Make all Serializers receive `current_user` instead `user` [EE]

See merge request !1869

Port of 32077-pipeline-graph-margins to EE

See merge request !1867