CE upstream

Closes gitlab-ce#33877, gitlab-ce#33594, gitlab-ce#33598, and gitlab-ce#27070

See merge request !2178

Remove left margin for stages with downstream and only one job

Closes #2714

See merge request !2221

Geo: fix removal of repositories from disk on secondary nodes

Closes #2701

See merge request !2210

Fix linking to line number on parallel diff creating empty discussion -- EE merge edition

Closes gitlab-ce#34010

See merge request !2207

Merge branch '33489-rename-settings-panel-close-action-to-collapse-to-avoid-confusion-ee' into 'master'

Port Resolve "Rename settings panel "close" action to "collapse" to avoid confusion" to EE

See merge request !2096

Move Elasticsearch indexer into run_after_commit

Closes #2712

See merge request !2214

Elasticsearch queries should retry on failure

Closes #2681

See merge request !2181

Change title of Code quality docs

See merge request !2204

Geo config - Move "regenerate authorized keys" step (step 6) of config to before step 4

See merge request !2218

Details:

    modified:   spec/features/help_pages_spec.rb
    deleted:    spec/features/milestones/milestones_spec.rb

Link to instructions on how to build a custom OpenSSH package

See merge request !2206

Normalise license MD5 values

See merge request !2205

Closes #2712

Fix https://gitlab.com/gitlab-org/gitlab-ce/issues/34010

Conflicts:
	spec/javascripts/fixtures/merge_requests.rb
	spec/javascripts/merge_request_notes_spec.js

Fix remaining DotPosition cops 👮

Closes #2710

See merge request !2211

Introduced in
https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/2201

Fix broken time sync leeway with Geo

See merge request !2208

Previous versions did not properly set the IAT leeway properly, causing
many Geo API requests to be marked invalid. The problem was that
the ruby-jwt `master` used `iat_leeway` as the parameter, but v1.5.6
actually used `leeway`.

Use curl --remote-name instead of curl -O to fix broken docs lint

See merge request !2209

CE to EE: refactor projects finder init collection ee

See merge request !2199

EE version: Clean up the Project model to reduce conflicts

See merge request !2056