[15.0][MIG] base_rest_pydantic: Migration to 15.0

[yankinmax]

• depends on [15.0][MIG] pydantic: Migration to 15.0 #223
• depends on [MIG][15.0] base_rest: Migration to 15.0 #225

[yankinmax]

@lmignon Can you pls take a look here?

[github-actions]

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[lmignon]

base_rest_pydantic is now available into 15.0. It works with standard pydantic models or extendable_pydantic models

[yankinmax]

thanks a lot @lmignon