fix using CPU torch with UV

Author: Borda

.github/workflows/ci-tests-fabric.yml

@@ -66,6 +66,7 @@ jobs:
       TORCH_URL_TEST: "https://download.pytorch.org/whl/test/cpu/"
       # TODO: Remove this - Enable running MPS tests on this platform
       DISABLE_MPS: ${{ matrix.os == 'macOS-14' && '1' || '0' }}
+      UV_TORCH_BACKEND: "cpu"
     steps:
       - uses: actions/checkout@v5
 

.github/workflows/ci-tests-pytorch.yml

@@ -71,6 +71,7 @@ jobs:
       FREEZE_REQUIREMENTS: ${{ ! (github.ref == 'refs/heads/master' || startsWith(github.ref, 'refs/heads/release/')) }}
       # TODO: Remove this - Enable running MPS tests on this platform
       DISABLE_MPS: ${{ matrix.os == 'macOS-14' && '1' || '0' }}
+      UV_TORCH_BACKEND: "cpu"
     steps:
       - uses: actions/checkout@v5