fix torchvision::nms not exist (#5671)

Author: zhyncs

.github/workflows/pr-test-sgl-kernel.yml

@@ -88,7 +88,7 @@ jobs:
       - name: Install
         run: |
           bash scripts/ci_install_dependency.sh
-          pip3 install torch==2.6.0 && pip3 install pytest
+          pip3 install torch==2.6.0 torchvision && pip3 install pytest
           pip3 uninstall sgl-kernel -y || true
           pip3 install sgl-kernel/dist/*whl --force-reinstall --no-deps
           pip3 list | grep sgl-kernel