Bump PyTorch pin to 2025-03-25

[swolchok]

Found release from https://hud2.pytorch.org/hud/pytorch/pytorch/nightly/0 .

[swolchok]

Stack from ghstack (oldest at bottom):

• Add optimized ELU implementation #9521
• -> Bump PyTorch pin to 2025-03-25 #9578

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/9578

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❌ 1 New Failure, 2 Cancelled Jobs

As of commit bbf612c with merge base ce74f8e ():

NEW FAILURE - The following job has failed:

• pull / unittest-arm / linux-job (gh)
  backends/arm/test/misc/test_debug_feats.py::TestCollateTosaTests::test_collate_tosa_BI_tests

CANCELLED JOBS - The following jobs were cancelled. Please retry:

• pull / unittest / macos / macos-job (gh)
  ##[error]The operation was canceled.
• trunk / test-arm-reference-delegation / linux-job (gh)
  ##[error]The operation was canceled.

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[mergennachin]

Can we do this after our branch cut on Wednesday 6pm?

The reason is that 3-12 is the RC candidate for PT2.7 - anything after that is in the PT2.8

Otherwise, we would have to go back and forth, instead of monotonically increasing the nightly.

[mergennachin]

Unfortunately, this is the downside of delaying the branch cut and diverging from pytorch timeline

[swolchok]

@mergennachin the branch is cut now, right?

[mergennachin]

Thank you for your patience, we can move forward now that its post branch cut

[mergennachin]

cc @metascroy

[swolchok]

looks like unittest-arm failure are new, CC @digantdesai

[swolchok]

resnapshotted the ARM test. we'll see if it builds.

[swolchok]

pinged @digantdesai for advice on how to proceed with ARM failures