Fix linter

Author: RedCuckoo

.github/workflows/test.yaml

@@ -24,7 +24,7 @@ jobs:
       #----------------------------------------------
       #          install and run linters
       #----------------------------------------------
-      - run: python -m pip install black flake8 isort
+      - run: python -m pip install black==23.11.0 flake8 isort
       - run: |
           flake8 .
           black . --check