Override MERGE_METHOD with labels?

[chancancode]

Hello! First of all, this is great! Thank you for sharing your code!

Would it be possible to allow labels to override the MERGE_METHOD? I ask because we usually prefer the merge method, but occasionally, a contributor will open a PR with many commits, in which case it would be better to use the squash method.

Since this action uses environment variables, I think I can do that myself by running a step to set the variable before running this action, but it would be great if that feature is built-in!

[pascalgn]

I think the easiest solution would be to create 2 action workflows, maybe one named automerge.yml (following the documentation in the README), and one named autosquash.yml which is a copy, with the following configuration:

        env:
          GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
          MERGE_LABELS: "autosquash"
          MERGE_METHOD: "squash"

[pascalgn]

I closed this now, but feel free to reopen it (or open a new issue) if you have any other questions, remarks, etc.!