Fix TSAN issue in TCPStore (#69590)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/69590
The variable `callbackRegisteredData_` was written to without
synchronization.
ghstack-source-id: 145066862
Test Plan: waitforbuildbot
Reviewed By: rohan-varma
Differential Revision: D32938979
fbshipit-source-id: bc9a11a70680db45ece95880ae19ce2026e8a88e
