Installing using kubectl directly fails

[ahg-g]

When running the instruction:

kubectl apply -k github.com/kubernetes-sigs/jobset/config/default?ref=main

We get the following error:

error: unable to decode "github.com/kubernetes-sigs/jobset/config/default?ref=main": parsing time "null" as "2006-01-02T15:04:05Z07:00": cannot parse "null" as "2006"                                             

however, building the files first using kustomize and then applying them succeeds:

./bin/kustomize build config/default | kubectl apply --server-side -f -

This started to happen after the PR that added the webhooks #51

[ahg-g]

/kind bug