Gcp stabilize service with postman collection (GONRG-3570)

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

Does this introduce a breaking change?

• [NO]

What is the current behavior?

getPartition method in PartitionServiceImpl returns PartitionInfo object when partition with partitionId does not exist.

What is the new/expected behavior?

getPartition method in PartitionServiceImpl throws 404-Not Found exception when partition with partitionId does not exist.