Add torch_pin to 2.5 release branch (#8280)

README.md

@@ -161,7 +161,7 @@ GPU and nightly builds are available in our public GCS bucket.
 | 2.5 (CUDA 12.4 + Python 3.10) | `https://storage.googleapis.com/pytorch-xla-releases/wheels/cuda/12.4/torch_xla-2.5.0-cp310-cp310-linux_x86_64.whl` |
 | 2.5 (CUDA 12.4 + Python 3.11) | `https://storage.googleapis.com/pytorch-xla-releases/wheels/cuda/12.4/torch_xla-2.5.0-cp311-cp311-linux_x86_64.whl` |
 | nightly (Python 3.10) | `https://storage.googleapis.com/pytorch-xla-releases/wheels/tpuvm/torch_xla-2.6.0.dev-cp310-cp310-linux_x86_64.whl` |
-| nightly (CUDA 12.1 + Python 3.8) | `https://storage.googleapis.com/pytorch-xla-releases/wheels/cuda/12.1/torch_xla-2.6.0.dev-cp38-cp38-linux_x86_64.whl` |
+| nightly (CUDA 12.1 + Python 3.10) | `https://storage.googleapis.com/pytorch-xla-releases/wheels/cuda/12.1/torch_xla-2.6.0.dev-cp310-cp310-linux_x86_64.whl` |
 
 <details>
 
@@ -203,7 +203,6 @@ The torch wheel version `2.5.0.dev20240820+cpu` can be found at https://download
 
 | Version | GPU Wheel |
 | --- | ----------- |
-| 2.5 (CUDA 12.1 + Python 3.8) | `https://storage.googleapis.com/pytorch-xla-releases/wheels/cuda/12.1/torch_xla-2.5.0-cp38-cp38-manylinux_2_28_x86_64.whl` |
 | 2.5 (CUDA 12.1 + Python 3.10) | `https://storage.googleapis.com/pytorch-xla-releases/wheels/cuda/12.1/torch_xla-2.5.0-cp310-cp310-manylinux_2_28_x86_64.whl` |
 | 2.5 (CUDA 12.1 + Python 3.11) | `https://storage.googleapis.com/pytorch-xla-releases/wheels/cuda/12.1/torch_xla-2.5.0-cp311-cp311-manylinux_2_28_x86_64.whl` |
 | 2.4 (CUDA 12.1 + Python 3.8) | `https://storage.googleapis.com/pytorch-xla-releases/wheels/cuda/12.1/torch_xla-2.4.0-cp38-cp38-manylinux_2_28_x86_64.whl` |