Fix the pipeline

Author: aerkalov

.github/workflows/ci-tests.yml

@@ -42,7 +42,11 @@ jobs:
         python-version: ${{ matrix.python-version }}
 
     - name: Test with python ${{ matrix.python-version }}
-      run: pip install -e ".[test]" && ./test.sh
+      run: |
+        python -m pip install --upgrade pip
+        pip install -e ".[test]"
+        pip install pygments
+        ./test.sh
 
     - name: Upload coverage reports
       uses: actions/upload-artifact@v4