Merge remote-tracking branch 'origin/debian'

* origin/debian: (137 commits)
  Revert not specifying building the "debian" branch; as we merge master into this branch it will (since the very introduction of the .gitlab-ci.yml file) will have it and will additionally be out of sync.
  Update changelog for 1.2.2-1 release
  Actually replace all instances of libmonkey-patch-perl with libsub-override-perl.
  Update changelog for 1.2.1-1 release
  Replace libmonkey-patch-perl with libsub-override-perl (re. #931730 and #8)
  release as 1.2.0-2
  Bump standards version to 4.4.0, no changes needed.
  Update changelog for 1.2.0-1 release
  Update changelog for 1.1.3-1 release
  Add libmonkey-patch-perl as a binary / build dependency.
  Update changelog for 1.1.2-1 release
  Update changelog for 1.1.1-1 release
  Update changelog for 1.1.0-1 release
  Bump Standards-Version to 4.3.0
  Update changelog for 1.0.0-1 release
  Update debian/copyright to drop reference to ar.pm.
  Release version 1.0.0
  Remove javaproperties handler after Emmanuel Bourg's patch was released in openjdk-11 11.0.1+13-3. (Closes: #914289)
  Drop .ar handler; binutils is reproducible. (Closes: #781262, #843811)
  Ignore encrypted .zip files as we can never normalise them. (Closes: #852207)
  ...