Updated GitHub Actions CI configuration

Author: vruusmann

.github/workflows/publish.yml

@@ -10,10 +10,10 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: actions/setup-python@v5
         with:
-          python-version: '3.10'
+          python-version: 3.12
       - run: |
           python -m pip install --upgrade pip
           pip install build twine

.github/workflows/pytest.yaml

@@ -11,11 +11,11 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python: [3.8, 3.9, '3.10', 3.11, 3.12]
+        python: [3.8, 3.9, '3.10', 3.11, 3.12, 3.13]
         java: [11, 17, 21]
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     - uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.python }}