[CI] Add job 'Format'

.github/workflows/ci.yml

@@ -3,7 +3,7 @@ name: CI
 on:
   push:
   pull_request:
-  # Run CI daily even without code changes to ensure tests pass with 
+  # Run CI daily even without code changes to ensure tests pass with
   # updated dependencies.
   schedule:
     - cron: '0 0 * * 5'
@@ -18,7 +18,28 @@ on:
 
 jobs:
 
-  build:
+  Format:
+    name: 🐍 Format
+    runs-on: ubuntu-latest
+    steps:
+
+    - name: 🧰 Checkout
+      uses: actions/checkout@v2
+
+    - name: 🐍 Setup Python ${{ matrix.pyver }}
+      uses: actions/setup-python@v2
+      with:
+        python-version: '3.10'
+
+    - name: 🛠️ Install dependencies
+      run: |
+        python -m pip install -U pip
+        python -m pip install black
+
+    - name: 🚦 Check code formatting standards
+      run: python -m black --check ./
+
+  Build:
     strategy:
       fail-fast: false
       matrix: