Official Google Cloud Tutorial 'Run JanusGraph on GKE with Bigtable' broken for me. Kubernetes Policy mismatch issues with Helm

After following the Google Cloud tutorial here:

I get to the step 9 ‘Deploy JanusGraph Helm’

helm upgrade --install
–wait
–timeout 600s
${HELM_RELEASE_NAME}
./${HELM_REPO}
-f values.yaml

With the following error:
Error: unable to build kubernetes objects from release manifest: unable to recognize “”: no matches for kind “PodDisruptionBudget” in version “policy/v1beta1”

I read this:

but could not find the poddisruptionbudget.yaml file anywhere in the cloud shell environment.
Nor was I able to kubectl apply -f mypdb.yaml to specify the correct policy/v1 instead of v1beta as described here:

Where is the v1beta being specified in the cloud shell?