Update: apiVersion of search virtualservice to v1beta1

Type of change

• Bug Fix
• Feature

Please provide link to gitlab issue or ADR(Architecture Decision Record)

Does this introduce a change in the core logic?

• [NO]

Does this introduce a change in the cloud provider implementation, if so which cloud?

• AWS
• Azure
• Google Cloud
• IBM

Does this introduce a breaking change?

• [NO]

What is the current behavior?

current version of istio API is v1alpha3

What is the new/expected behavior?

the version of istio API is v1beta1

Have you added/updated Unit Tests and Integration Tests?

No need

Any other useful information

Only GC changes