Log Message:
Update to 4.2. From the changelog:

- added support for Critic markup
  (https://gitlab.com/saalen/highlight/-/issues/197)
- added support for jam/ham
  (https://gitlab.com/saalen/highlight/-/issues/196)
- added support for PureScript
  (https://gitlab.com/saalen/highlight/-/merge_requests/132/)
- added support for Nix
  (https://gitlab.com/saalen/highlight/-/issues/200)
- added ino file mapping / Arduino C
  (https://gitlab.com/saalen/highlight/-/issues/201)
- fixed RTF page color attributes
  (https://gitlab.com/saalen/highlight/-/issues/195)
- fixed identifier parsing in yaml.lang
  (https://gitlab.com/saalen/highlight/-/issues/190)
- fixed symbol parsing in lisp.lang
  https://gitlab.com/saalen/highlight/-/issues/198
- fixed string parsing in csharp.lang
  (https://gitlab.com/saalen/highlight/-/issues/199)
- fixed string parsing in conf.lang
  (https://gitlab.com/saalen/highlight/-/issues/203)
- added make target `install-lib-shared` to install shared lib
  (https://gitlab.com/saalen/highlight/-/issues/202)
- CLI W32: prevented automatic file pattern expansion
  (https://gitlab.com/saalen/highlight/-/issues/186)
- GUI: added Japanese translation (thanks to FunFun)
- GUI: disabled floating panel (state restore fails)