Add `ciflow/trunk` label (#69575)
Summary:
Which includes all workflows but periodic ones
Pull Request resolved: https://github.com/pytorch/pytorch/pull/69575
Reviewed By: seemethere
Differential Revision: D32932850
Pulled By: malfet
fbshipit-source-id: 80b58fb3a0d5f8dbc527124be5bf25bd716448b8
