[Connector-V2][Http connector] Support user-defined schema

[TyrantLucifer]

Search before asking

• [X] I had searched in the feature and found no similar feature requirement.

Description

Http connector v2 now only support parse http content to a single shema, we should support user-defined schema.

Usage Scenario

No response

Related issues

No response

Are you willing to submit a PR?

• [X] Yes I am willing to submit a PR!

Code of Conduct

• [X] I agree to follow this project's Code of Conduct