* upstream/master: (63 commits)
  Update docs related to protected actions
  Add changelog for protected branches abilities fix
  Ask for an example project for bug reports
  Center loading spinner in issuable filters
  Fix chat commands specs related to protected actions
  Fix builds controller specs related to protected actions
  Fix pipeline retry specs related to protected actions
  Fix environment model specs related to protected actions
  Fix build factory specs related to protected actions
  Fix job play service specs related to protected actions
  Fix play status specs related to protected actions
  Fix deploy chat command specs for protected actions
  Fix environment specs related to protected actions
  Fix pipeline processing specs related to protected actions
  Fix build entity specs related to protected actions
  Check only a merge ability for protected actions
  Add tag_list param to project api
  Allow PostReceivePack to be enabled with Gitaly
  Remove some deprecated methods
  Add :owned param to ProjectFinder
  ...