Merge remote-tracking branch 'upstream/master' into pipeline-emails

* upstream/master: (97 commits)
  Add missing spec for ProtectedBranches::CreateService
  Add specs that target status failure
  Return created status
  Document how to download the latest build artifacts
  Clarify why GH integration is the preferred importing method
  Refactor GitHub importing documentation
  Update GitHub importer documentation  to reflect current importer state
  Formatting fix in doc/ci/examples/README.md
  Refactor boards_spec.rb to avoid code duplication
  Replace contributions calendar timezone payload with dates
  Use oj gem for faster JSON processing
  Render invalid template for merge requests without source project and open
  Bump fog-aws and other dependent modules
  Fix API notes endpoint when posting only emoji
  Doesnt run JS if active element doesnt exist
  Add missing CHANGELOG entry
  Remove schema annotations completely
  fixed incorrect reference to @repository.root_ref in _readme.html.haml. #22083
  Scrolls active tab into middle of nav on mobile
  MergeRequest#environments now returns an empty array when diff_head_commit is nil
  ...