Cherry pick istio health check improvements into m16 master
Change Details
This MR cherry picks the istio health check improvements into azure/m16-master. The details of the change and why it is required is mentioned in the original MR itself.
Testing
Tested the change by manually upgrading the osdu-istio and common-base helm chart in a m16 instance. The following results are for backend health and DP service access for the same instance after charts upgrade.
Backend Health
Service Call
Edited by Abhishek Patil