Update pip first

.github/workflows/test.yml

@@ -47,6 +47,7 @@ jobs:
       shell: cmd
     - name: Install Dependencies
       run: |
+        pip install --upgrade pip
         pip install ${{ matrix.qt-lib }}${{ matrix.qt-version }} numpy${{ matrix.numpy-version }} scipy pyopengl h5py six matplotlib
         pip install .
         pip install pytest pytest-cov pytest-xdist coverage