fix: default values for git commiter (#35)

* fix: backward compatibility default input values

* chore: default to github.actor

* chore: default to secret values

* chore: revert to github.actor default value

* chore: set default commiter to semantic-release-bot for verbosity

action.yml

@@ -27,16 +27,18 @@ inputs:
   git_committer_name:
     description: "committer name for semantic release changes"
     required: false
+    default: "semantic-release-bot"
   git_committer_email:
     description: "committer email address for semantic release changes"
     required: false
+    default: "semantic-release-bot"
   gpg_private_key:
     description: "gpg private key matching committer email"
     required: false
   passphrase:
     description: "passphrase for gpg private key"
     required: false
-
+    
 outputs:
   new_release_version:
     description: "Version of the new release"