ci: add format black action check

.github/workflows/format.yml

@@ -0,0 +1,11 @@
+name: Format in Black
+on: [push, pull_request]
+jobs:
+  linter_name:
+    name: runner / black formatter
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: rickstaa/action-black@v1
+        with:
+          black_args: ". --check"