feat: deprecate GITHUB_TOKEN env var and use token input instead with default value (#112)

* deprecate GITHUB_TOKEN env var and use token input instead with default value

* update readme

* npm run lint:fix

action.yml

@@ -38,6 +38,10 @@ inputs:
   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
+  token:
+    description: 'GITHUB_TOKEN or a `repo` scoped Personal Access Token (PAT)'
+    required: false
+    default: ${{ github.token }}
 
 outputs:
   committed: