chore: add kuberay- name prefix to validating webhook Service

[davidxia]

and ValidatingWebhookConfiguration so they have more specific names of kuberay-webhook-service and kuberay-validating-webhook-configuration instead of the generic webhook-service and
validating-webhook-configuration, respectively.

The Service is in the ray-system namespace so it's unlikely to conflict with another Service's name in this namespace. But ValidatingWebhookConfigurations are cluster-scoped, so it's likely to conflict with another one that's also named validating-webhook-configuration.

Diff

running bin/kustomize build config/default-with-webhooks before and after, the diff is

Service

50131c50131
<   name: webhook-service
---
>   name: kuberay-webhook-service

Certificate

50252,50253c50252,50253
<   - webhook-service.ray-system.svc
<   - webhook-service.ray-system.svc.cluster.local
---
>   - kuberay-webhook-service.ray-system.svc
>   - kuberay-webhook-service.ray-system.svc.cluster.local

ValidatingWebhookConfiguration

50286c50286
<   name: validating-webhook-configuration
---
>   name: kuberay-validating-webhook-configuration
50292c50292
<       name: webhook-service
---
>       name: kuberay-webhook-service

Checks

• I've made sure the tests are passing.
• Testing Strategy
  • Unit tests
  • Manual tests
  • This PR is not tested :(

[davidxia]

cc @kevin85421

[kevin85421]

Thanks!

[davidxia]

by the way, filed upstream issue here to see if kubebuilder maintainers will support customizing the name with markers instead of kustomize