Use assertRaisesRegexWithHighlight test_custom_operators.py (#55519)
Summary:
Step to resolving https://github.com/pytorch/pytorch/issues/55072
Pull Request resolved: https://github.com/pytorch/pytorch/pull/55519
Reviewed By: gmagogsfm
Differential Revision: D27627487
Pulled By: janeyx99
fbshipit-source-id: 6bd54433617180c56153785b69c2e49faf19ef34
