Pin bump for optimum-executorch

[guangy10]

Summary

Pin bump to include latest changes for gemma-3, phi-4, and more

Test plan

CI

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/12022

• 📄 Preview Python docs built from this PR

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• VolumeLimitExceeded Issue for linux.2xlarge and linux.4xlarge

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[larryliu0820]

You need the actual optimum-executorch.txt in this PR right?

[guangy10]

@larryliu0820 good to go?