GCP fix swagger (GONRG-1022)

Type of change

• Bug Fix
• Feature

Does this introduce a change in the core logic?

• [Yes]

Does this introduce new features/functionality in core logic?

• [No]

Does this introduce a breaking change?

• [No]

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

• AWS
• Azure
• GCP
• IBM

What is the current behavior?

Swagger doesn't work in GCP.

What is the new/expected behavior?

Swagger is working in GCP.

Have you added/updated Unit Tests and Integration Tests?

• [No]

Any other useful information

Changes:

• Change some code in SwaggerDocumentationConfig class