Automated submodule update: tensorpipe (#56916)
Summary:
This is an automated pull request to update the first-party submodule for [pytorch/tensorpipe](https://github.com/pytorch/tensorpipe).
New submodule commit: https://github.com/pytorch/tensorpipe/commit/12699ad3882620224cd54aa0e05778779412710d
Pull Request resolved: https://github.com/pytorch/pytorch/pull/56916
Test Plan: Ensure that CI jobs succeed on GitHub before landing.
Reviewed By: lw
Differential Revision: D27997920
Pulled By: beauby
fbshipit-source-id: 057dff1f28bf3a9d1d05522d3b60ee3530aecf22
