[FLINK-36685][Kubernetes Operator] allow CREATE/UPDATE operation on flinkdeployments resource on webhook mutation endpoint

[suez1224]

What is the purpose of the change

allow CREATE/UPDATE operation on flinkdeployments resource on webhook mutation endpoint

Brief change log

(for example:)

• update webhook.yaml in helm chart to add CREATE/UPDATE operation on flinkdeployments resource

Verifying this change

This change is verified by locally deploy the helm chart and verified the mutation endpoint is able to modify the flinkdep CRD.

Does this pull request potentially affect one of the following parts:

• Dependencies (does it add or upgrade a dependency): No
• The public API, i.e., is any changes to the CustomResourceDescriptors: No
• Core observer or reconciler logic that is regularly executed: No

Documentation

• Does this pull request introduce a new feature? No
• If yes, how is the feature documented? not applicable