Automated submodule update: kineto (pytorch#79925)

This is an automated pull request to update the first-party submodule for [pytorch/kineto](https://github.com/pytorch/kineto).

New submodule commit: pytorch/kineto@a7c85d5

Test Plan: Ensure that CI jobs succeed on GitHub before landing.
Pull Request resolved: pytorch#79925
Approved by: https://github.com/malfet, https://github.com/robieta