CI: fix gbq test #36436
- [x] closes #36436


Guessing but would pinning google-cloud-core==1.3.0 work as in the comments from the google-cloud-python issue?

https://github.com/googleapis/google-cloud-python/issues/10471#issuecomment-669252150 > Guessing but would pinning google-cloud-core==1.3.0 work as in the comments from the google-cloud-python issue?
> 
> [googleapis/google-cloud-python#10471 (comment)](https://github.com/googleapis/google-cloud-python/issues/10471#issuecomment-669252150)

I haven't tried that yet. But it seems like google fixed it in a recent version. The previous failure was unrealated to gbq. Thanks @VirosaLi for tracking that down