[Improvement][Create Workflow] The Java node in the workflow supports JShell as a run type.

### Search before asking

- [x] I had searched in the [issues](https://github.com/apache/dolphinscheduler/issues?q=is%3Aissue) and found no similar feature requirement.

### Description

Using NORMAL_JAR or FAT_JAR is very powerful, but it can be a bit cumbersome at times. It would be great if we could support running a snippet of JShell code.

### Are you willing to submit a PR?

- [ ] Yes I am willing to submit a PR!

### Code of Conduct

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

Start by locating the Java node implementation and the existing NORMAL_JAR and FAT_JAR run types, then inspect how their options are exposed and executed. Add JShell as a selectable run type that executes a code snippet, and verify the Java node's existing tests or workflow execution path covers the new behavior.

Written by the indexing model from the issue text.