`ImagePullSecrets`: Add `GAR` secret to `image_pull_secret` in `.drone.yml` (#80912)
* Add GAR secret to image_pull_secret
* Fix starlark fmt
(cherry picked from commit 65104a7efa)
`ImagePullSecrets`: Add `GAR` secret to `image_pull_secret` in `.drone.yml` (#80912)
* Add GAR secret to image_pull_secret
* Fix starlark fmt
(cherry picked from commit 65104a7efa)