ci: Add PR trigger for binary builds workflows (#71431)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/71431
Adds a PR trigger based on paths to the binary build workflows to make
it easier to test / verify changes to the binary build workflows without
adding a bunch of skipped checks to the majority of our workflows
Signed-off-by: Eli Uriegas <eliuriegas@fb.com>
Test Plan: Imported from OSS
Reviewed By: atalman
Differential Revision: D33641276
Pulled By: seemethere
fbshipit-source-id: 0ed65cbcebf06dfe998f81d67df817250dd1a716
(cherry picked from commit 598b55fd1894b7edb21f208b1c86fd6a377ebc69)
