Disable tsan for test_dataloader.py. (#25005)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/25005
Seeing a bunch of failures in TSAN mostly with the following error:
```
ThreadSanitizer: starting new threads after multi-threaded fork is not
supported. Dying (set die_after_fork=0 to override)
```
TSAN is unsafe to use in a multi-threaded program after fork() and setting
die_after_fork can lead to deadlocks. As a result, I'm disabling tsan.
ghstack-source-id: 88765698
Differential Revision: D16954347
fbshipit-source-id: 18895cd82b5052938284b46479d8470af2d74a06
