feat!: add commit input (#331)

* fix!: remove `signoff` input

* feat: add `commit` input

action.yml

@@ -19,6 +19,9 @@ inputs:
     description: How the action should behave when the targeted branch is missing
     required: false
     default: throw
+  commit:
+    description: Additional arguments for the git commit command
+    required: false
   committer_name:
     description: The name of the custom committer you want to use
     required: false 
@@ -56,9 +59,6 @@ inputs:
   remove:
     description: Arguments for the git rm command
     required: false
-  signoff:
-    description: Whether to use the --signoff option on git commit
-    required: false
   tag:
     description: Arguments for the git tag command (the tag name always needs to be the first word not preceded by a hyphen)
     required: false