commit-option for --amend

[bobis33]

I just started to use this github action today, it is very useful, but i wanted to amend my commit instead of create an other.
By creating a "commit-option" we could do it :)

[bobis33]

didnt saw the commit-option in the doc ...

[stefanzweifel]

We also have some dedicated docs for --amend. Check them out: https://github.com/stefanzweifel/git-auto-commit-action?tab=readme-ov-file#using---amend-and---no-edit-as-commit-options