CE upstream - Tuesday

Closes gitlab-com/infrastructure#3416, gitlab-qa#140, and gl-sast#3

See merge request gitlab-org/gitlab-ee!3844

Migrate to Project#empty_repo?

Closes #41326

See merge request gitlab-org/gitlab-ce!16054

Postgres FDW documentation

See merge request gitlab-org/gitlab-ee!3076

Resolve Style/EmptyLambdaParameter violations

See merge request gitlab-org/gitlab-ee!3877

Use relative URLs when linking to uploaded files (EE)

See merge request gitlab-org/gitlab-ee!3814

Docs: move articles LDAP-CE and LDAP-EE to its topic-related folder

See merge request gitlab-org/gitlab-ee!3866

[EE] Use gitlab-styles

See merge request gitlab-org/gitlab-ee!3817

* ee/master: (36 commits)
  Remove image to Auto DevOps settings and refactor the enable section
  Update CHANGELOG.md for 10.3.0
  Update CHANGELOG-EE.md for 10.3.0-ee
  Update dashboard image
  Doc update for GitLab HA Geo.
  Extend Geo Node Status with information in replication slots
  Docs: move article Artifactory + GL to subject-related folder
  Mention GitLab Pages when changing username
  Consolidate the docs when changing a repo path
  Add docs for automatic redirects when renaming namespaces
  remove unnecessary identifiers
  move "Transfer an existing project into a group" to project docs
  added link from admin Dashboard "Geo" feature/component
  EE Port of Basic IDE Setup
  Add CHANGELOG
  Remove EE::GeoAwareAvatar
  Update Ruby version to 2.3.6
  Update Dependencies
  Remove confusing language similar to HA nodes
  removed old weight_select.js file
  ...

Signed-off-by: Rémy Coutable <remy@rymai.me>

Clarify Auto DevOps pipelines

See merge request gitlab-org/gitlab-ee!3872

Port of fl-update-svg to EE

See merge request gitlab-org/gitlab-ee!3861

[ci skip]

[ci skip]

Remove EE::GeoAwareAvatar

Closes #4143

See merge request gitlab-org/gitlab-ee!3857

Replace explicit service configuration with roles

Closes omnibus-gitlab#2952

See merge request gitlab-org/gitlab-ee!3742

Update dashboard image

See merge request gitlab-org/gitlab-ee!3870

Doc update for GitLab HA Geo.

Closes #4328

See merge request gitlab-org/gitlab-ee!3822

Merge branch 'ee-41291-spec-failure-on-spec-features-merge_requests-image_diff_notes_spec-rb' into 'master'

[EE] Fix a failure because we stub DiffHelper#diff_file_blob_raw_path instead of #diff_file_blob_raw_url

See merge request gitlab-org/gitlab-ee!3855

[EE] Update Ruby version to 2.3.6

See merge request gitlab-org/gitlab-ee!3848

Extend Geo Node Status with information in replication slots

See merge request gitlab-org/gitlab-ee!3621

Add detail to disaster recovery docs

See merge request gitlab-org/gitlab-ee!3845

Docs: move article Artifactory + GL to subject-related folder

See merge request gitlab-org/gitlab-ee!3862

Docs move transfer project to group ee

See merge request gitlab-org/gitlab-ee!3837

- move the section
- replace identifiers with inline links
- update settings (General settings > Advanced settings)

added link from admin Dashboard "Geo" feature/component

See merge request gitlab-org/gitlab-ee!3795

Merge branch 'ee-39246-fork-and-import-jobs-should-only-be-marked-as-failed-when-the-number-of-retries-was-exhausted' into 'master'

Fork and Import jobs only get marked as failed when the number of Sidekiq retries were exhausted

See merge request gitlab-org/gitlab-ee!3851