Change action trigger for label (#1080)
Change action trigger for label (#1080)

Fix actions/labeler when fork pull request occurs

https://github.com/actions/labeler/issues/12#issuecomment-670967607
GoogleCloudPlatform/click-to-deploy,GoogleCloudPlatform/click-to-deploy,GoogleCloudPlatform/click-to-deploy,GoogleCloudPlatform/click-to-deploy,GoogleCloudPlatform/click-to-deploy,GoogleCloudPlatform/click-to-deploy