Attempt local validation

.github/workflows/ci.yml

@@ -98,6 +98,27 @@ jobs:
         .github/utils/wait_for_it.sh localhost:3213 -t 120
         sleep 15
 
+    - name: Set up Python 3.10
+      uses: actions/setup-python@v4
+      with:
+        python-version: '3.10'
+        cache: 'pip'
+        cache-dependency-path: |
+          requirements*.txt
+
+    - name: Install tools
+      run: |
+        python -m pip install --upgrade pip
+        pip install -U setuptools wheel
+        pip install -e .
+        pip install -r requirements.txt
+        pip install -r requirements-server.txt
+        pip install -r requirements-dev.txt
+
+    - name: Test local validator
+      run: |
+        optimade-validator -vv http://localhost:3213/v1
+
     - name: Test server, including OPTIONAL base URLs
       uses: Materials-Consortia/optimade-validator-action@v2
       with: