Added liveness and readiness endpoints (GONRG-9374)

Type of change

• Bug Fix
• Feature

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
• GCP
• IBM
• CI

Does this introduce a breaking change?

• [NO]

What is the new/expected behavior?

Added actuator/health/liveness and actuator/health/readiness endpoints for GC.