chore: add allowed media types lambda

[OmarAlJarrah]

Situation

In the context of our current API operations, the GetCarsListingsOperationParams and GetCarsDetailsOperationParams are incorrectly generating an Accept header that requests both JSON and XML content types. This is causing unnecessary complications and potential issues when interacting with the API.

Task

The goal of this change is to ensure that the Accept header only requests the JSON content type for the specified operations.

Action

To accomplish this task, I have updated the MustacheHelpers.kt file to include a new allowedMediaTypes Mustache Lambda. This lambda filters out any XML content types from the Accept header, ensuring that only JSON content types are requested. The specific changes include:

• Adding a new Mustache Lambda to filter the media types.
• Ensuring the context for the fragment execution only includes the filtered media types.

Testing

NaN

Results

Fixes SDK-1718.

Notes

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