163cddf203
Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>. register client-go auth plugins for e2e e2e depends on use of the gcp client-go auth provider, but did not explicitly register the auth provider. it indirectly imported the plugins via a roundabout chain (see https://github.com/kubernetes/kubernetes/issues/63731#issuecomment-388529120) which broke when those imports were trimmed in https://github.com/kubernetes/kubernetes/pull/63673 if e2e requires these auth plugins, it should include them explicitly in the top-level test package fixes #63731 ```release-note NONE ```