Add options to Black for checking code style

Author: ndem0

.github/workflows/master_cleaner.yml

@@ -15,6 +15,7 @@ jobs:
       - uses: psf/black@stable
         with:
           src: "./ezyrb"
+          options: "--check"
 
       - name: Create Pull Request
         uses: peter-evans/create-pull-request@v3
@@ -26,4 +27,4 @@ jobs:
             There appear to be some python formatting errors in ${{ github.sha }}. This pull request
             uses the [psf/black](https://github.com/psf/black) formatter to fix these issues.
           base: ${{ github.head_ref }} # Creates pull request onto pull request or commit branch
-          branch: actions/black
+          branch: actions/black