Add API support for committing changes to different projects in same fork network

Closes #50850

See merge request gitlab-org/gitlab-ce!27915

This extends POST#:id/repository/commits to allow the optional parameter
`:start_project`, which will allow targeting other projects besides the
one derived from `:id`.

Resolves https://gitlab.com/gitlab-org/gitlab-ce/issues/50850

Upgrade Gitaly to v1.43.0

See merge request gitlab-org/gitlab-ce!28867

Add group-level email routing

See merge request gitlab-org/gitlab-ce!25299

EE Backport: Add group-level email routing

See merge request gitlab-org/gitlab-ee!12657

Fix typo

See merge request gitlab-org/gitlab-ce!28939

EE: Fix typo

See merge request gitlab-org/gitlab-ee!13753

Fix emoji picker popup is not always fully visible

Closes #60987

See merge request gitlab-org/gitlab-ce!28984

Fix locale/gitlab.pot

See merge request gitlab-org/gitlab-ee!13765

- Select notification email by walking up group/subgroup path
- Add settings UI to set group email notification address
- Add tests

- Select notification email by walking up group/subgroup path
- Add settings UI to set group email notification address
- Add tests

Add logging to GraphQL

Closes #59587

See merge request gitlab-org/gitlab-ce!27885

Add logging to GraphQL

See merge request gitlab-org/gitlab-ee!13620

Add `rule_type` to indexes explicitly

Closes #11876

See merge request gitlab-org/gitlab-ee!13761

Remove legacy artifact related code

Closes #58595

See merge request gitlab-org/gitlab-ce!26475

Port to EE: Remove legacy artifact related code

See merge request gitlab-org/gitlab-ee!13128