update cuda wheels to pull from test channel, add back 13.0

Author: Daniel Flores

.github/workflows/docs.yaml

@@ -92,7 +92,7 @@ jobs:
         run: ${CONDA_RUN} python -m pip install --upgrade pip
       - name: Install PyTorch
         run: |
-          ${CONDA_RUN} python -m pip install torch torchvision --index-url https://download.pytorch.org/whl/cu${{ env.cuda_version_without_periods }}
+          ${CONDA_RUN} python -m pip install torch torchvision --index-url https://download.pytorch.org/whl/test/cu${{ env.cuda_version_without_periods }}
           ${CONDA_RUN} python -c 'import torch; print(f"{torch.__version__}"); print(f"{torch.__file__}"); print(f"{torch.cuda.is_available()=}")'
       - name: Install torchcodec from the wheel
         run: |

.github/workflows/linux_cuda_wheel.yaml

@@ -66,7 +66,7 @@ jobs:
           # the wheel unless the label ciflow/binaries/all is present in the
           # PR.
         python-version: ['3.9', '3.10', '3.11', '3.12', '3.13']
-        cuda-version: ['12.6', '12.8', '12.9']
+        cuda-version: ['12.6', '12.8', '12.9', '13.0']
         # TODO: put back ffmpeg 5 https://github.com/pytorch/torchcodec/issues/325
         ffmpeg-version-for-tests: ['4.4.2', '5', '6', '7']
 
@@ -105,7 +105,7 @@ jobs:
         run: ${CONDA_RUN} python -m pip install --upgrade pip
       - name: Install PyTorch
         run: |
-          ${CONDA_RUN} python -m pip install torch torchvision --index-url https://download.pytorch.org/whl/cu${{ env.cuda_version_without_periods }}
+          ${CONDA_RUN} python -m pip install torch torchvision --index-url https://download.pytorch.org/whl/test/cu${{ env.cuda_version_without_periods }}
           ${CONDA_RUN} python -c 'import torch; print(f"{torch.__version__}"); print(f"{torch.__file__}"); print(f"{torch.cuda.is_available()=}")'
       - name: Install torchcodec from the wheel
         run: |