[Bug][Manager] join transform node only supports one field to join

[JJiacheng]

What happened

join only supports one field, when there is more than one field, sql forward error

What you expected to happen

join supports multiple fields

How to reproduce

join configuration with more than one field

Environment

No response

InLong version

master

InLong Component

InLong Manager

Are you willing to submit PR?

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

Code of Conduct

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