[Optimization][CDCSOURCE] Issues with using global variables in CDCSOURCE scenarios

[Zzm0809]

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• I had searched in the issues and found no similar optimization requirement.

Description

CDCSOURCE 场景下, 使用全局变量功能,任务发布后,在查看版本历史中,没有将使用到的全局变量进行前置拼接, 与预期不符
但是不影响执行, 此处需要优化

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• Yes I am willing to submit a PR!

Code of Conduct

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

[github-actions]

Hello, this issue is about CDC/CDCSOURCE, so I assign it to @aiwenmo. If you have any questions, you can comment and reply.

你好, 这个 issue 是关于 CDC/CDCSOURCE 的，所以我把它分配给了 @aiwenmo。如有任何问题，可以评论回复。

[aiwenmo]

After the task is published, all types of tasks will not concatenate global variables, which is correct.