Package / Actions Cleanup - Continuation of #435

.github/workflows/black.yml

@@ -8,17 +8,27 @@ jobs:
 
     steps:
       - name: Check out code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
+
+      - name: Get changed Python files
+        id: changed-py-files
+        uses: tj-actions/changed-files@v47
+        with:
+          files: |
+            **.py
 
       - name: Set up Python
-        uses: actions/setup-python@v2
+        if: steps.changed-py-files.outputs.any_changed == 'true'
+        uses: actions/setup-python@v6
         with:
           python-version: "3.11"
 
       - name: Install Black
+        if: steps.changed-py-files.outputs.any_changed == 'true'
         run: |
           python -m pip install --upgrade pip
           pip install black
 
       - name: Check Black Formatting
-        run: black --check .
+        if: steps.changed-py-files.outputs.any_changed == 'true'
+        run: black --check ${{ steps.changed-py-files.outputs.all_changed_files }}