Update Python and Action versions in CI

.github/workflows/push.yml

@@ -8,11 +8,11 @@ jobs:
     strategy:
       max-parallel: 4
       matrix:
-        python-version: ["3.10"]
+        python-version: ["3.11"]
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.python-version }}
 
@@ -72,13 +72,13 @@ jobs:
     if: startsWith(github.event.ref, 'refs/tags/v')
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           submodules: 'true'
       - name: Set up Python
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@v5
         with:
-          python-version: "3.10"
+          python-version: "3.11"
       - name: Create source distribution
         run: |
           python setup.py sdist