GCP fix NPE (GONRG-945)

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?

GCP provider contains NPE.

What is the new/expected behavior?

NPE in GCP provider fixed.

Have you added/updated Unit Tests and Integration Tests?

• [NO]

Any other useful information

Changes:

• Changed provider/schema-gcp/src/main/java/org/opengroup/osdu/schema/impl/schemainfostore/GoogleSchemaInfoStore.java
• Changed provider/schema-gcp/src/main/java/org/opengroup/osdu/schema/impl/schemastore/GoogleSchemaStore.java