Add support of new IAM driver

[akremenetsky]

No description provided.

[gemini-code-assist]

Summary of Changes

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This pull request significantly refactors the service's authentication layer by integrating a new HTTP-based IAM driver. This change abstracts the underlying token processing logic, enhancing the system's flexibility and preparing it for diverse IAM implementations. The update improves the maintainability and future extensibility of the authentication mechanism.

Highlights

• New IAM Driver Integration: Introduced a new HttpDriver from gcl_iam.drivers to handle Identity and Access Management (IAM) authentication, replacing the previous direct use of a token encryption algorithm.
• Refactored WSGI Application Builder: The build_wsgi_application function was updated to directly accept an iam_engine_driver object, streamlining the authentication setup.
• Middleware Configuration Update: The GenesisCoreAuthMiddleware now utilizes the new iam_engine_driver for authentication processing, removing the need for a separate token_algorithm parameter.

Ignored Files

• Ignored by pattern: .github/workflows/** (1)
  • .github/workflows/build.yml

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[gemini-code-assist]

Code Review

This pull request introduces support for a new IAM driver, refactoring the application startup to use an iam_driver object instead of a token_algorithm. The changes are logical and well-contained. I've provided a couple of suggestions to improve code clarity and maintainability: one regarding an unused import and another about using keyword arguments for better readability when instantiating the new driver.