Metadata fields are not handled correctly by Kubernetes

[ricardozanini]

What happened:
When running the SDK with Kubernetes API, the admission controller won't parse metadata fields correctly. This happens because it's a dynamic object that can be anything. This way, the admission controller won't know how to handle these objects.

What you expected to happen:
That metadata fields are preserved when a CRD using this SDK is submitted to the server.

How to reproduce it:
Add a metadata field to a workflow state (v0.8/v0.9):

"states": [
    {
      "name": "CheckApplication",
      "type": "switch",
      "metadata": {
        "metadataState": "state info"
      },

Anything else we need to know?:
See context here:

• errorMessage metadata is not parsed correctly apache/incubator-kie-kogito-serverless-operator#532