* master: (28 commits)
  Merge branch 'jej-23867-use-mr-finder-instead-of-access-check' ...
  Merge branch 'html-safe-diff-line-content' into 'security'
  Merge branch 'rs-filter-authentication_token' into 'security'
  Merge branch 'destroy-session' into 'security'
  Updating reference to database password
  Update CHANGELOG.md for 8.13.9
  Update CHANGELOG.md for 8.14.4
  Don't check if stage name doesn't exist
  Various small emoji positioning adjustments
  Add nested groups support on data level
  Update factory_girl_rails to 4.7.0
  Correct previous stable branch used in 8.14 to 8.15 update guide
  Enable display of admonition icons in Asciidoc.
  add link_to_if helper on target_branch link on Merge Request ...
  Fade out should be white instead of gray
  Do nothing if file is undefined
  fix: 24982- Remove'Signed in successfully' message After this ...
  adds impersonator variable and makes sudo usage overall more clear
  Reenables /user API request to return private-token if user is ...
  Fixed timeago re-rendering every element
  ...