[Feature] When will Dubbo be compatible with Spring Boot 4?

### Pre-check

- [x] I am sure that all the content I provide is in English.

### Search before asking

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

### Apache Dubbo Component

Java SDK (apache/dubbo)

### Descriptions

I hope this will be supported as soon as possible

### Related issues

_No response_

### Are you willing to submit a pull request to fix on your own?

- [x] Yes I am willing to submit a pull request on my own!

### Code of Conduct

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

The issue names the Java SDK and Spring Boot 4 but no files, tests, or entry points. Start by locating Dubbo’s Spring Boot integration and current compatibility support, then establish the required Spring Boot 4 support criteria and verify them against existing integration coverage.

Written by the indexing model from the issue text.