add option to use --signoff with git commit (#46)

* adds option to use --signoff with git commit

Signed-off-by: pvogt09 <50047961+pvogt09@users.noreply.github.com>

* [auto] build: update compiled version

* fix: remove quotes and refactor

* [auto] build: update compiled version

Co-authored-by: Federico Grandi <fgrandi30@gmail.com>

README.md

@@ -35,6 +35,10 @@ Add a step like this to your workflow:
     # Default: false
     force: true
 
+    # Whether to use the --signoff option on `git commit`
+    # Default: false
+    signoff: true
+
     # The message for the commit
     # Default: 'Commit from GitHub Actions'
     message: 'Your commit message'