docs: GKE setup guide's node-pools create command broken in latest version of gcloud

[ft-cama]

Bug description

After doing "gcloud components update" I went from version 377.0.0 to 379.0.0 and now user node-pools cannot be created the same way as in the guide.

When running this command from from the GKE kubernetes setup guide:

gcloud beta container node-pools create user-pool \
  --machine-type n1-standard-2 \
  --num-nodes 0 \
  --enable-autoscaling \
  --min-nodes 0 \
  --max-nodes 3 \
  --node-labels hub.jupyter.org/node-purpose=user \
  --node-taints hub.jupyter.org_dedicated=user:NoSchedule \
  --zone us-central1-b \
  --cluster CLUSTERNAME

It outputs:

ERROR: (gcloud.beta.container.node-pools.create) ResponseError: code=400, message=Request contains an invalid argument."

After downgrading to 377.0.0 it works just fine however.

[lud0v1c]

I'm also getting this, in node-pools create but also creating a new cluster.
Played with the call a little bit and if I take out pool autoscaling (--enable-autoscaling --min-nodes 0 --max-nodes 3) it goes through fine..

[consideRatio]

@lud0v1c @ft-cama did you realize what argument was invalid to pass in the newest version of gcloud? I'm trying to figure out how we can update this documentation.

[lud0v1c]

Sorry, I was getting tired of it and downgraded to the previous gcloud build, which worked. Will update here if I find out the culprit.