Prepare 10.8 RC4 release

See merge request gitlab-org/gitlab-ce!18784

Resolve "Add sha1 dependency EE backport"

Closes #46136

See merge request gitlab-org/gitlab-ce!18804

* master: (40 commits)
  Vendor Auto-DevOps.gitlab-ci.yml
  Backport: Keep ShaAttribute from halting startup when we can’t connect to a database
  Replace the `project/builds/artifacts.feature` spinach test with an rspec analog
  Resolve "Monitoring graphs - Popover value improvements"
  Fix close keyboard shortcuts dialog using the keyboard shortcut
  Backport 5480-epic-notifications from EE
  Force creation of new import_state when setting an import state field
  Make deploy keys table more clearly structured
  Resolve "Inform users of up to $500 offer for GCP account"
  Resolve "Clean up bottom status bar Web IDE"
  resolve conflicts with master
  Don't always create a new import_state record from project factory
  Adjust issue boards list header label text color
  Add update guide for 10.8
  Display merge commit SHA in merge widget after merge
  Improved commit message body rendering
  remove unused methods until needed
  add webpack_ prefix to entrypoint paths helper
  Add notice to current fe guide about new fe guide
  Respect permissions when showing Failed Jobs
  ...

Fix failed jobs tab

See merge request gitlab-org/gitlab-ce!18520

Vendor Auto-DevOps.gitlab-ci.yml

See merge request gitlab-org/gitlab-ce!18797

Merge branch '5794-we-should-failover-gracefully-when-we-can-t-connect-to-geo-tracking-database-ce' into 'master'

Backport: Keep ShaAttribute from halting startup when we can’t connect to a database

See merge request gitlab-org/gitlab-ce!18726

Replace the `project/builds/artifacts.feature` spinach test with an rspec analog

See merge request gitlab-org/gitlab-ce!18729

Fix project factory `import_*` traits

Closes gitlab-ee#5904

See merge request gitlab-org/gitlab-ce!18780

Resolve "Display merge commit SHA in merge widget after merge"

Closes #43557

See merge request gitlab-org/gitlab-ce!18722

Resolve "Monitoring graphs - Popover value improvements"

Closes #41783 and gitlab-ee#5573

See merge request gitlab-org/gitlab-ce!18353

Backport 5480-epic-notifications from EE

See merge request gitlab-org/gitlab-ce!18724

Upgrade to Webpack 4

Closes #43400

See merge request gitlab-org/gitlab-ce!17218

Fix close keyboard shortcuts dialog using the keyboard shortcut

See merge request gitlab-org/gitlab-ce!18783

Make deploy keys table more clearly structured

Closes #41082

See merge request gitlab-org/gitlab-ce!18279

Resolve "Inform users of up to $500 offer for GCP account"

Closes #43469

See merge request gitlab-org/gitlab-ce!18684

Add notice to current fe guide about new fe guide

Closes #46067

See merge request gitlab-org/gitlab-ce!18781

Resolve "Issue Boards List Heading Label chooses Wrong Text Color"

Closes #36983

See merge request gitlab-org/gitlab-ce!18786

* master: (252 commits)
  Upgrade underscore.js
  Enable prometheus metrics by default
  Add signature verification badge to compare view
  Add Changelog
  Update instalation from source guide
  fix Web IDE file tree scroll issue
  Enable quick support actions default
  Backport of 4084-epics-username-autocomplete
  Remove top margin on the terms page with performance bar
  Backports every CE related change from ee-44542 to CE
  Fix typo in changelog entry
  fix missing space
  Backport IdentityLinker#failed? from GroupSaml callback flow
  Add ci_cd_settings delete_all dependency on project
  AutoDevOps Docs fix invalid external link
  Ignore knapsack and rspec_flaky
  Ensure web hook 'blocked URL' errors are stored in as web hook logs and properly surfaced to the user
  Partially revert ebcd5711 to fix runner pages
  Reuses `InternalRedirect` when possible
  Enforces terms in the web application
  ...

Resolve "Clean up bottom status bar Web IDE"

Closes #44833

See merge request gitlab-org/gitlab-ce!18756

Add update guide for 10.8

See merge request gitlab-org/gitlab-ce!18695

Improved commit message body rendering

See merge request gitlab-org/gitlab-ce!18725

* master: (445 commits)
  Document new variables
  Add memoization of commit related values in Ci::Pipeline
  Add CHANGELOG entry
  Add a CI_COMMIT_MESSAGE predefined variable
  Use btn-inverted for Enable group Runners
  Update doc wording to focus on NGINX server metrics
  Support anchors for Groups::RunnersController
  Add internalization
  Client implementation GetRawChanges
  Fix rubocop violation
  Cleanup pipeline build stage background migration
  Fix broken references in repository mirroring docs
  Use push events again to determine if repo needs checking
  Bump Gitaly Proto to v0.99
  Bump Gitaly to 0.98.0
  Add a comment about implementing proper policies for group runner permissions
  Adds changelog entry, changes RemoteMirror#sync? to be semantically sound and remove reference to pull mirrors in view
  Adds remote mirror table migration
  Backports every CE related change from ee-5484 to CE
  Fix rubocop
  ...

Backport of 1481-changing-weight-values-should-trigger-system-notes

See merge request gitlab-org/gitlab-ce!18699