pre-commit black config: run in check only mode

Signed-off-by: BugFest <bugfest.dev@pm.me>

.pre-commit-config.yaml

@@ -9,6 +9,9 @@ repos:
         # https://pre-commit.com/#top_level-default_language_version
         language_version: python3.10
         types: [python]
+        args: [
+          "--check",  # Don't apply changes automatically
+        ]
   - repo: https://github.com/pycqa/flake8
     rev: 6.0.0
     hooks: