Merge pull request PEtab-dev#355 from dweindl/gha_py313

GHA: Test with Python3.13

Author: dweindl

.github/workflows/ci_tests.yml

@@ -12,7 +12,7 @@ jobs:
     strategy:
       matrix:
         platform: [windows-latest, macos-latest, ubuntu-latest]
-        python-version: ["3.10", "3.12"]
+        python-version: ["3.10", "3.13"]
     runs-on: ${{ matrix.platform }}
 
     steps: