This commit fixes a bug that was causing a 500 error when a group
milestone was associated to more than 3 releases. This was caused by
attempting to access `milestone.project`, even in the context of a group
milestone.

Clarify step about propagation of correlation ID

See merge request gitlab-org/gitlab!55529

Add Import options to projects and groups dropdown

See merge request gitlab-org/gitlab!54749

* alter controller redirect paths
* enable deep linking for new group tabs

Expose webhook data for ProjectMember via its own data-builder class

See merge request gitlab-org/gitlab!53443

Enhance empty_repo_upload experiment tracking

See merge request gitlab-org/gitlab!55135

Add last updated time to devops score page

See merge request gitlab-org/gitlab!55357

Return Collection from #variables

See merge request gitlab-org/gitlab!54563

Avoids having separate `#variable_collection` properties

Add last activity on column to seat usage table

See merge request gitlab-org/gitlab!55321

Add last activity time column to seat usage table

Disable Graphql/AuthorizeTypes cop for Input Types

See merge request gitlab-org/gitlab!54643

- Disable cop
- Remove existing disable comments

Introduce word-diff parser

See merge request gitlab-org/gitlab!55105

UX cleanup: Adding an alert integration - split form into tabs

See merge request gitlab-org/gitlab!54842

Integrate styled checkboxes from latest gitlab-ui changes

See merge request gitlab-org/gitlab!54188

Add epic quick actions feature specs

See merge request gitlab-org/gitlab!54982

Improve Vulnerability Tracking: Store Fingerprints

See merge request gitlab-org/gitlab!55173

* Updates parsers/security/common.rb to parse the `tracking`
  field if it exists
* Adds PORO and model classes for FindingFingerprint:
  * ee/lib/gitlab/ci/reports/security/finding_fingerprint.rb
  * ee/app/models/vulnerabilities/finding_fingerprint.rb
* Updates ee/app/services/security/store_report_service.rb to save
  and update finding fingerprints when storing a report in the
  database
* Adds unit tests for the new classes
* Adds unit tests for store_report_service

`checkinstall` no longer part of debian

See merge request gitlab-org/gitlab!53912

13.9 upgrade warning for Geo

See merge request gitlab-org/gitlab!55501

Modify pypi documentation for dependency confusion

See merge request gitlab-org/gitlab!55085

Add graphql etag caching frontend

See merge request gitlab-org/gitlab!54321

Add mention of GitLab for Open Source program

See merge request gitlab-org/gitlab!55403

Fix inconsistent heading style in email diffs

See merge request gitlab-org/gitlab!55420

Update css to make vulnerability title more prominent

See merge request gitlab-org/gitlab!55389

Remove exception when tracking events using Redis HLL

See merge request gitlab-org/gitlab!55502

Upgrade to CodeQuality 0.85.23 in CI template

See merge request gitlab-org/gitlab!55508

Add qa-selector on checkout page

See merge request gitlab-org/gitlab!55428

Fix wrong message for group vulnerability report

See merge request gitlab-org/gitlab!55464

Collapse Deployments in Merge Request if Many

See merge request gitlab-org/gitlab!55239

If there are more than 4 deployments an MR has been deployed to (either
pre- or post-merge), put them in a collapsible container and collapse it
by default.

This does require a bit of expansion on the MrCollapsibleContainer
slightly, providing a slot to add "header text", which is not blue nor
clickable. This was done without touching the current slot or props, and
should be completely backwards compatible.

Autocorrect Graphql/Descriptions offenses

See merge request gitlab-org/gitlab!55430

Geo: Release package file verification

See merge request gitlab-org/gitlab!54361