Updated GitHub Actions config

Author: thomaspatzke

.github/workflows/release.yml

@@ -8,7 +8,7 @@ on:
 
 jobs:
   build-and-publish:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     environment: release
     permissions:
       id-token: write
@@ -17,7 +17,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v5
         with:
-          python-version: '3.11'
+          python-version: '3.13'
       - name: Install Poetry
         run: pipx install poetry
       - name: Verify versioning

.github/workflows/test.yml

@@ -10,8 +10,8 @@ jobs:
   test:
     strategy:
       matrix:
-        os: [ 'ubuntu-20.04' ]
-        python-version: [ '3.8', '3.9', '3.10', '3.11', '3.12' ]
+        os: [ 'ubuntu-latest' ]
+        python-version: [ '3.9', '3.10', '3.11', '3.12', '3.13' ]
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v4