[Feature][SDK] Transform SQL support Round function

[Zkplo]

Description

• parent issue [Umbrella] Tencent Rhino-bird: Expand InLong Transform functions #10796

ROUND(x [,y])：

• x: Numbers that need to be rounded. It can be an integer or a floating point number.
• y: Optional parameter, indicating the number of decimal places to be rounded.
  • If y is omitted, it means rounding x to an integer.
  • If y is a positive number, it means rounding x to y decimal places.
  • If y is negative, it means rounding x to the nearest y decimal place.

Use case

No response

Are you willing to submit PR?

• Yes, I am willing to submit a PR!

Code of Conduct

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

[github-actions]

Hello @Zkplo, thank you for opening your first issue in InLong 🧡 We will respond as soon as possible ⏳
If this is a bug report, please provide screenshots or error logs for us to reproduce your issue, so we can do our best to fix it.
If you have any questions in the meantime, you can also ask us on the InLong Discussions 🔍

[aloyszhang]

FYI, the pull request can be modified many times. You don't need to close and create a new pull request if you want to make some modifications.

[Zkplo]

FYI, the pull request can be modified many times. You don't need to close and create a new pull request if you want to make some modifications.
仅供参考，拉取请求可以修改多次。如果您想进行一些修改，则无需关闭并创建新的拉取请求。

Thank you for your suggestion. I will pay attention to it in the future.