Fix tests workflow

Author: dolfinus

.github/workflows/test.yml

@@ -92,6 +92,28 @@ jobs:
     - name: Checkout code
       uses: actions/checkout@v3
 
+    - name: Set up Python 3.11
+      uses: actions/setup-python@v4
+      with:
+        python-version: '3.11'
+
+    - name: Cache pip
+      uses: actions/cache@v3
+      with:
+        path: ~/.cache/pip
+        key: ${{ runner.os }}-python-3.11-tests-${{ hashFiles('requirements*.txt') }}
+        restore-keys: |
+          ${{ runner.os }}-python-3.11-tests-${{ hashFiles('requirements*.txt') }}
+          ${{ runner.os }}-python-3.11-tests-
+          ${{ runner.os }}-python
+          ${{ runner.os }}-
+
+    - name: Upgrade pip
+      run: python -m pip install --upgrade pip setuptools wheel
+
+    - name: Install dependencies
+      run: pip install -I -r requirements.txt -r requirements-test.txt
+
     - name: Download all coverage reports
       uses: actions/download-artifact@v3
       with: