Update ci.yaml

.github/workflows/ci.yaml

@@ -26,12 +26,21 @@ jobs:
         cd build
         cmake ..
         make
+      shell: bash
 
-    - name: Python Test
+  test:
+    runs-on: ubuntu-latest
+    container: ubuntu:jammy
+    steps:
+    - uses: actions/checkout@v4
+    - name: Set up Python
+      uses: actions/setup-python@v4
+      with:
+        python-version: '3.10'
+    - name: Install dependencies
       run: |
-        # Make a virtualenv
-        python3 -m venv .env
-        source .env/bin/activate
-        pip3 install .
-        pip3 install pytest
-        python3 -m pytest
+        python -m pip install --upgrade pip
+        pip install .
+        pip install pytest
+    - name: Run tests
+      run: pytest