生成上传文件代理时，找不到FileParameter参数。

[RRQM]

Describe the bug
生成上传文件代理时，找不到FileParameter参数。

To Reproduce
Steps to reproduce the behavior:
1、WebApiClientCore

Expected behavior
A clear and concise description of what you expected to happen.

Screenshots

Desktop (please complete the following information):

• OS: [e.g. iOS]
• Version [e.g. 22]

Additional context
经过咨询，该问题修改为FileInfo即可解决问题。但是每次生成都需要修改，所以希望能尽快发布nuget更新包。谢谢。