Use Magma-cuda 12.8 for libtorch

[tinglvv]

#145570

Build failure for libtorch wheel
CUDAContext.cpp:(.text+0x157): additional relocation overflows omitted from the output /usr/bin/ld: failed to convert GOTPCREL relocation; relink with --no-relax collect2: error: ld returned 1 exit status

Unsure if this is related, fixing as a start

[pytorch-bot]

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✅ You can merge normally! (3 Unrelated Failures)

As of commit cd29fed with merge base 58cc669 ():

BROKEN TRUNK - The following jobs failed but were present on the merge base:

👉 Rebase onto the `viable/strict` branch to avoid these failures

• linux-binary-manywheel / manywheel-py3_9-cuda11_8-test / test (gh) (trunk failure)
  Process completed with exit code 1.
• linux-binary-manywheel / manywheel-py3_9-cuda12_4-test / test (gh) (trunk failure)
  Process completed with exit code 1.
• linux-binary-manywheel / manywheel-py3_9-cuda12_6-test / test (gh) (trunk failure)
  Process completed with exit code 1.

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[Skylion007]

#39968 (comment) see also try this to see if this flag fixes it

[tinglvv]

@pytorchbot merge

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