feat: Externalize API-gateway version

[bhavanakarwade]

Description

• Implement a feature to externalize the version of the API Gateway. This allows for versioning to be managed externally, providing greater flexibility and easier maintenance of the gateway version across environments.

Task Details

• Externalize the API Gateway version so it can be configured without code changes.
• Ensure that the version is loaded from an external source such as environment variables or a configuration file.

Steps to Implement

• Add configuration support to externalize the API Gateway version.
• Use environment variables or a configuration file to manage the version.
• Update existing references to the API Gateway version to read from the external source.

Note:

• Check the feasibility of retrieving the versioning information directly from a GitHub repository.