Change macOS runner version in workflow

[ZainRizvi]

Removing dependency on self-hosted macOS runners, in prep for migration to meta-pytorch org

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/torchchat/1549

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❌ 10 New Failures, 3 Pending, 5 Unrelated Failures

As of commit abae66c with merge base a1a7f37 ():

NEW FAILURES - The following jobs have failed:

• pull / runner-aoti (16-core-ubuntu) (gh)
  Process completed with exit code 1.
• pull / test-build-runner-et-android / linux-job (gh)
  RuntimeError: Command docker exec -t ff72f830ad9299e6df8db32bbce52b83b841b4cc72f2b85092718ab58c0d3153 /exec failed with exit code 1
• pull / test-gpu-aoti-bfloat16 (cuda, stories15M) / linux-job (gh)
  RuntimeError: Command docker exec -t fe4822a22c30a93e47df781b8416db667a8ccfd8a81e8208bdd79160abee58a5 /exec failed with exit code 1
• pull / test-gpu-aoti-float16 (cuda, stories15M) / linux-job (gh)
  RuntimeError: Command docker exec -t 4d205461a3dd61e6eab425748a30e173d65ace6c614ac0df4d298a50b412163f /exec failed with exit code 1
• pull / test-gpu-aoti-float32 (cuda, stories15M) / linux-job (gh)
  RuntimeError: Command docker exec -t b7355943bfbd0e43bb93bfa4689e9f3ac00160efee4ce4040ef1e4598e9381be /exec failed with exit code 1
• pull / test-gpu-compile (cuda, stories15M) / linux-job (gh)
  RuntimeError: Command docker exec -t 5ce5d5233f889cb591b9c51a3a6ea2009cfcc96c483d2bfb27db2cb4010be303 /exec failed with exit code 1
• pull / test-gpu-eval-sanity-check (cuda, stories15M) / linux-job (gh)
  RuntimeError: Command docker exec -t dace0a7e83f33d5e9e64bf3c489a60c7d7a7f7273f818599dc9c175a1fdd9357 /exec failed with exit code 1
• Run parallel prefill / test-cuda / linux-job (gh)
  RuntimeError: Command docker exec -t c871a0dba0c644f8d25383a95f19d87a16bd98dc044dc777600b3bd39b1d6d79 /exec failed with exit code 1
• Run parallel prefill / test-sdpa-backends-export / linux-job (gh)
  RuntimeError: Command docker exec -t e61c005e6fff6994085de540655bc907b7881a776fc5a832ae0f43afddc4b180 /exec failed with exit code 1
• Run the aoti runner with CUDA using stories / test-runner-aot-cuda / linux-job (gh)
  RuntimeError: Command docker exec -t 3811206ca7eb7e95f75b7b7624041640aec09424a349127b1a65939a05f74a29 /exec failed with exit code 1

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

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

• pull / runner-et (16-core-ubuntu) (gh) (trunk failure)
• pull / runner-et (macos-14-xlarge) (gh) (trunk failure)
• pull / test-tinystories-executorch (16-core-ubuntu) (gh) (trunk failure)
• pull / test-tinystories-executorch (macos-14-xlarge) (gh) (trunk failure)
• pull / test-torchao-experimental-et (macos-14-xlarge) (gh) (trunk failure)

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[ZainRizvi]

Mps jobs succeeded. Merging changes