Update github actions to python 3.13

Author: ollo69

.github/workflows/linting.yaml

@@ -17,7 +17,7 @@ jobs:
       - name: Setup Python
         uses: actions/setup-python@v5
         with:
-          python-version: 3.12
+          python-version: 3.13
 
       - name: Install dependencies
         run: |

.github/workflows/tests.yaml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.12"]
+        python-version: ["3.13"]
 
     steps:
       - uses: actions/checkout@v4