chore: update actions for checkout and setup-python

Author: ecugol

.github/workflows/tox-tests.yml

@@ -10,9 +10,9 @@ jobs:
       matrix:
         python: ["3.7", "3.8", "3.9", "3.10", "3.11"]
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Setup Python
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python }}
       - name: Upgrade pip