Update python.yml

Author: wenbinf

.github/workflows/python.yml

@@ -16,7 +16,7 @@ jobs:
         python-version: [3.7, 3.8, 3.9, '3.10']
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Use Python ${{ matrix.python-version }}
       uses: actions/setup-python@v4
       with: