Make "Run flake8" step always succeed again (#47236)
Summary:
In https://github.com/pytorch/pytorch/issues/46990 I asked whether the "Run flake8" step was supposed to always succeed (so that the "Add annotations" step would be sure to run). The reviewers and I weren't sure of the answer to that question, so we merged it anyway, but that turned out to be wrong: https://github.com/pytorch/pytorch/runs/1327599980 So this PR fixes that issue introduced by https://github.com/pytorch/pytorch/issues/46990.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/47236
Reviewed By: janeyx99
Differential Revision: D24692359
Pulled By: samestep
fbshipit-source-id: c12382de6945245d6251ce792896e5e688f480af
