[FEATURE] Support scalar Python UDF

### Code of Conduct

- [X] I agree to follow this project's [Code of Conduct](https://www.apache.org/foundation/policies/conduct)

### Search before asking

- [X] I have searched in the [issues](https://github.com/apache/kyuubi/issues?q=is%3Aissue) and found no similar issues.

### Describe the feature

支持python UDF，对数据分析人员使用更加方便：
https://docs.aws.amazon.com/redshift/latest/dg/udf-creating-a-scalar-udf.html

### Motivation

_No response_

### Describe the solution

_No response_

### Additional context

_No response_

### Are you willing to submit PR?

- [ ] Yes. I would be willing to submit a PR with guidance from the Kyuubi community to improve.
- [ ] No. I cannot submit a PR at this time.

Start with the linked AWS Redshift scalar UDF reference and determine the Kyuubi/Spark integration entry point and relevant tests; the issue names no files or existing implementation. Done should mean that scalar Python UDFs are supported for the intended data-analysis use case, with behavior and scope confirmed by the project.

Written by the indexing model from the issue text.