Ensure in CI pipeline that CRD changes are applied

[johscheuer]

What would you like to be added/changed?

In our CI pipeline we have a race condition when we apply changes to the CRD in our local kind cluster: https://github.com/FoundationDB/fdb-kubernetes-operator/pull/1301#pullrequestreview-1057010675. It can happen that manifests are applied before the CRD is actually updated in the kind cluster. I think the correct way is to add an additional kubectl wait statement to ensure the CRD is updated.