.circleci: Add option to not run build workflow (#50162)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/50162
Adds an option to not run the build workflow when the `run_build`
parameter is set to false
Should reduce the amount of double workflows that are run by
pytorch-probot
Uses functionality introduced in https://github.com/pytorch/pytorch-probot/pull/18
Signed-off-by: Eli Uriegas <eliuriegas@fb.com>
Test Plan: Imported from OSS
Reviewed By: yns88
Differential Revision: D25812971
Pulled By: seemethere
fbshipit-source-id: 4832170f6abcabe3f385f47a663d148b0cfe2a28