* upstream/master: (368 commits)
  Use root_url for issue boards user link
  removes extra line for empty milestone description
  code formatting corrected
  Fix reply-by-email not working due to queue name mismatch
  Remove duplicate code in repository cache clearing
  Expire and build repository cache after project import
  refactor(email): use setter method instead AR callbacks
  Move spec/mailers/shared/notify.rb to spec/support
  Fix status code expectation
  Stop clearing the database cache on rake cache:clear
  Fix error in generating labels
  Fix bug where e-mails were not being sent out via Sidekiq
  Document link syntax introduced by !5586
  Fix documents and comments on Build API `scope`. #23146 #19131
  adds entry in CHANGELOG
  removes extra line for empty issue description
  Re-organize queues to use for Sidekiq
  Fix wrong endpoint in api/users documentation, fix same typo in spec describe blocks
  Update CHANGELOG
  Fix object data to be sent to fetch analytics data
  ...