deploy.sh is broken

[adrcunha]

In what area(s)?

/area API
/area autoscale
/area build
/area monitoring
/area networking
/area test-and-release

What version of Knative?

HEAD

Actual Behavior

https://gubernator.knative.dev/build/knative-prow/logs/ci-knative-serving-playground/1101769507065565185

I0302 09:06:06.512] ERROR: (gcloud.container.clusters.create) ResponseError: code=400, message=Version "gke-latest" is invalid. It should have the form 1.X, 1.X.Y, 1.X.Y-.*, 'latest', or ''.

[mattmoor]

What's the status of this?

[adrcunha]

I forgot about it :P

[mattmoor]

@adrcunha ok, I'd put it into 0.5 as I thought you were looking into it (self-assigned). I'm just checking in on things in 0.5 (we have two weeks left), so LMK if this should stay or go.

[adrcunha]

Fixing it today, it's a simple fix, don't worry.