Support service labels

[dd-willgan]

Description

Currently adding K8s service annotations are supported but not labels. Support service labels through the following changes:

• Update CRD definitions in config/crd/bases/ and deploy/
• Update Helm chart templates and values for helm-charts/charts/kube-starrocks/ and helm-charts/charts/warehouse/
• Update pkg/apis/starrocks/v1/
• Update pkg/common/resource_utils/service and pkg/k8sutils/templates/service/spec to handle labels
  • Still support default labels generated by operator
• Update subcontrollers so that external service has labels but internal labels don't

Related Issue(s)

#625

Checklist

For operator, please complete the following checklist:

• run make generate to generate the code.
• run golangci-lint run to check the code style.
• run make test to run UT.
• run make manifests to update the yaml files of CRD.

For helm chart, please complete the following checklist:

• make sure you have updated the values.yaml
  file of starrocks chart.
• In scripts directory, run bash create-parent-chart-values.sh to update the values.yaml file of the parent
  chart( kube-starrocks chart).

[CLAassistant]

All committers have signed the CLA.

[yandongxiao]

@dd-willgan Thank you for your work!