Syntax checker update needed

[chester-leung]

Hi, first, thanks so much for building this!

GitHub recently released a new change that enables the runs-on section of an Actions workflow to have a labels and groups key under it. However, actionlint will throw an error if we do this:

.github/workflows/test.yaml:26:7: "runs-on" section must be sequence node but got mapping node with "!!map" tag [syntax-check]
   |
26 |       labels: custom-label
   |       ^~~~~~~

Can we please update the linter to reflect these new changes from GitHub? Thank you!

[mdfaizsiddiqui]

I am also facing the same problem!