[Enhancement] Add webhook

[yandongxiao]

Description

Please provide a detailed description of the changes you have made. Include the motivation for these changes, and any
additional context that may be important.

the PR should include helm chart changes and operator changes.

Related Issue(s)

Please list any related issues and link them here.

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).