Switch assertWarnsOnceRegex logic to check any instead of all. (#56434)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/56434
If we hit multiple TORCH_WARN from different sources when running the
statement, it makes more sense to me that we want to check the regex is
met in any one of the warning messages instead of all messages.
Test Plan: Imported from OSS
Reviewed By: mruberry
Differential Revision: D27871946
Pulled By: ailzhang
fbshipit-source-id: 5940a8e43e4cc91aef213ef01e48d506fd9a1132
