fix(installer): pytorch and ROCm versions are incompatible

Each version of torch is only available for specific versions of CUDA and ROCm.
The Invoke installer and dockerfile try to install torch 2.4.1 with ROCm 5.6
support, which does not exist. As a result, the installation falls back to the
default CUDA version so AMD GPUs aren't detected. This commits fixes that by
bumping the ROCm version to 6.1, as suggested by the PyTorch documentation. [1]

The specified CUDA version of 12.4 is still correct according to [1] so it does
need to be changed.

Closes #7006
Closes #7146

[1]: https://pytorch.org/get-started/previous-versions/#v241

docker/Dockerfile

@@ -38,7 +38,7 @@ RUN --mount=type=cache,target=/root/.cache/pip \
     if [ "$TARGETPLATFORM" = "linux/arm64" ] || [ "$GPU_DRIVER" = "cpu" ]; then \
         extra_index_url_arg="--extra-index-url https://download.pytorch.org/whl/cpu"; \
     elif [ "$GPU_DRIVER" = "rocm" ]; then \
-        extra_index_url_arg="--extra-index-url https://download.pytorch.org/whl/rocm5.6"; \
+        extra_index_url_arg="--extra-index-url https://download.pytorch.org/whl/rocm6.1"; \
     else \
         extra_index_url_arg="--extra-index-url https://download.pytorch.org/whl/cu124"; \
     fi &&\

installer/lib/installer.py

@@ -410,7 +410,7 @@ def get_torch_source() -> Tuple[str | None, str | None]:
     optional_modules: str | None = None
     if OS == "Linux":
         if device == GpuType.ROCM:
-            url = "https://download.pytorch.org/whl/rocm5.6"
+            url = "https://download.pytorch.org/whl/rocm6.1"
         elif device == GpuType.CPU:
             url = "https://download.pytorch.org/whl/cpu"
         elif device == GpuType.CUDA: