👷 Use black[jupyter] (#847)

* 👷 Use black[jupyter]

* 👷 Add missing matrix

.github/workflows/pull_format.yml

@@ -4,10 +4,19 @@ on: [pull_request]
 
 permissions:
   contents: write
+
 jobs:
   pull_format:
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.os }}
+
+    strategy:
+      matrix:
+        python-version: ["3.10"]
+        os: [ubuntu-latest]
+      fail-fast: false
+
     continue-on-error: true
+
     steps:
       - name: checkout
         continue-on-error: true
@@ -15,15 +24,14 @@ jobs:
         with:
           ref: ${{ github.head_ref }}
           fetch-depth: 0
-      
-          
+
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python-version }}
 
       - name: Install Black
-        run: pip install black
+        run: pip install "black[jupyter]"
 
       - name: Run Black
         # run: black $(git ls-files '*.py')