test against multiple pytorch versions

Author: mshr-h

.github/workflows/ci.yml

@@ -35,6 +35,7 @@ jobs:
       fail-fast: false
       matrix:
         python-version: ["3.11", "3.12", "3.13"]
+        pytorch-version: ["2.9", "2.10"]
 
     steps:
       - uses: actions/checkout@v6
@@ -48,7 +49,9 @@ jobs:
           python-version: ${{ matrix.python-version }}
 
       - name: Install dependencies
-        run: uv sync --dev
+        run: |
+          uv sync --dev
+          uv pip install torch==${{ matrix.python-version }}
 
       - name: Run tests
         run: uv run pytest -v tests -m "not slow"