Use latest versions of checkout and python actions

Author: endolith

.github/workflows/pythonpackage.yml

@@ -12,9 +12,9 @@ jobs:
         python-version: ['3.7', '3.8', '3.9', '3.10', '3.11', '3.12']
 
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v4
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v1
+      uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.python-version }}
     - name: Install dependencies