Update pytest.yml

Author: zhx828

.github/workflows/pytest.yml

@@ -58,7 +58,7 @@ jobs:
     runs-on: windows-latest
     strategy:
       matrix:
-        python-version: [ '2.7','3.7','3.8','3.9','3.10','3.11' ]
+        python-version: [ '3.7','3.8','3.9','3.10','3.11' ]
     steps:
     - uses: actions/checkout@v2
     - name: Set up Python ${{ matrix.python-version }}