Add CS auto-upgrade support in gkehubfeaturemembership

[ziyue-101]

Checklist

• I did not find a related open enhancement request.
• I understand that enhancement requests filed in the GitHub repository are by default low priority.
• If this request is time-sensitive, I have submitted a corresponding issue with GCP support.

Describe the feature or resource

Add the new field management in the resource backed by the direct controller.

Additional information

No response

Importance

No response

[ziyue-101]

Can't use the tool to generate the field from the grpc proto.

$ go run . update-types     --parent-message-full-name "google.cloud.gkehub.configmanagement.v1beta.MembershipSpec"     --new-field "cluster"     --api-dir ../../../apis/gkehub/v1beta1
Error: field not found in message
Usage:
   update-types [flags]

Flags:
      --api-dir string                    Base directory for APIs (default "/usr/local/google/home/ziyue/go/src/k8s-config-connector/apis/")
      --api-go-package-path string        Package path (default "github.com/GoogleCloudPlatform/k8s-config-connector/apis/")
  -h, --help                              help for update-types
      --ignored-fields string             Comma-separated list of fields to ignore
      --new-field string                  Name of the new field
      --parent-message-full-name string   Fully qualified name of the proto message holding the new field

Global Flags:
  -v, --api-version string         the KRM API version. used to import the KRM API
      --proto-source-path string   path to (compiled) proto for APIs
  -s, --service string             the GCP service name

field not found in message
exit status 1