Merge actions-hlint-run repo as /hlint-run

History context:
1. https://github.com/rwe/actions-hlint-run
2. ndmitchell/hlint#1311
3. haskell/actions#81
4. current merger of "unrelated repo histories", current branch
5. Merge request: haskell/actions#85
...