Split check and apply steps

Author: alejoe91

.github/workflows/black-formatting.yml

@@ -12,13 +12,20 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v4
 
-      - name: Check and apply black formatting
+      - name: Check black formatting
         id: black-check
         uses: psf/black@stable
         with:
             options: "--check --verbose"
         continue-on-error: true
 
+      - name: Apply black formatting
+        id: black-apply
+        uses: psf/black@stable
+        if : ${{ steps.black-check.outcome == 'failure' }}
+        with:
+            options: "--verbose"
+
       - name: Create PR
         uses: peter-evans/create-pull-request@v5
         if : ${{ steps.black-check.outcome == 'failure' }}