Install CPU-only PyTorch before requirements.txt on Linux

The previous ordering let requirements.txt pull CUDA-enabled torch
with all nvidia deps first, then the CPU override only swapped the
torch wheel while leaving ~3GB of nvidia packages installed.

.github/workflows/release.yml

@@ -55,17 +55,17 @@ jobs:
           python-version: ${{ matrix.python-version }}
           cache: "pip"
 
+      - name: Install CPU-only PyTorch (Linux)
+        if: matrix.platform == 'ubuntu-22.04'
+        run: |
+          pip install torch torchaudio --index-url https://download.pytorch.org/whl/cpu
+
       - name: Install Python dependencies
         run: |
           python -m pip install --upgrade pip
           pip install pyinstaller
           pip install -r backend/requirements.txt
 
-      - name: Install CPU-only PyTorch (Linux)
-        if: matrix.platform == 'ubuntu-22.04'
-        run: |
-          pip install torch torchaudio --index-url https://download.pytorch.org/whl/cpu --force-reinstall --no-deps
-
       - name: Install MLX dependencies (Apple Silicon only)
         if: matrix.backend == 'mlx'
         run: |