Fix Chinese garbled code issue when HTTP post input parameter is param

[zhangwejun]

What is the purpose of the change

EngineConn-Core defines the the abstractions and interfaces of the EngineConn core functions. The Engine Service in Linkis 0.x is refactored, EngineConn will handle the engine connection and session management.

Related issues/PRs

Related issues: #4858

Brief change log

• Set URL encoding format to default format

Checklist

• [x] I have read the Contributing Guidelines on pull requests.
• [ ] I have explained the need for this PR and the problem it solves
• [ ] I have explained the changes or the new features added to this PR
• [ ] I have added tests corresponding to this change
• [ ] I have updated the documentation to reflect this change
• [ ] I have verified that this change is backward compatible (If not, please discuss on the Linkis mailing list first)
• [ ] If this is a code change: I have written unit tests to fully verify the new behavior.