* upstream/master: (39 commits)
  Fix fetcher test
  Allow failures for fetcher test (#2730)
  Use JabRefExecutor service
  Move DOI fetching to separate thread #2682
  Remove gui dependency in logic (#2726)
  Fixed freeze on Mac OS X when creating/editing groups (#2727)
  Only ask once if telemetry data should be collected
  Update wiremock from 2.5.1 to 2.6.0
  Update mockito-core from 2.7.21 to 2.7.22
  Update log4j to latest version
  Azure test (#2724)
  Fix build
  Move expand filename to FileUtil
  Unicode conversion bibtexkey (#2720)
  Add sorting of all groups and subgroups, recursively (#2666)
  Only check capitalization of note and howpublished fields if they start with a word character
  Remove overhauled @author tag
  Implement #1359: collect telemetry (#2283)
  Add licenses of new dependencies
  Fix cssStyleHelper warnings
  ...