PT Pin Bump: 20241002 (#5880)

Summary:
Pull Request resolved: https://github.com/pytorch/executorch/pull/5880

Pin Bump to 2024-10-02
https://github.com/pytorch/pytorch/commit/4b2970f7cd3cdd56883cacf116a8693862f89db5

The existing pin (2024-09-27) is set to a date that uses a broken torchvision pin (vision unable to use the latest PT nightly)
https://github.com/pytorch/pytorch/commit/5ba404f68775bb06a1125a100687f86b6d6de6a8

Reviewed By: larryliu0820

Differential Revision: D63907815

fbshipit-source-id: f6455fc2453ee88674d493914fc42068002672ab