[Enhancement] Every utility class should be annotated with @UtilityClass as we are using lombok

### Search before asking

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

### Enhancement Request

Every utility class should be refactored with `@UtilityClass` annotation as we are using lombok.

### Describe the solution you'd like

Annotate all utility classes with `@UtilityClass`

Util classes that do not apply to the `@UtilityClass` annotation can be ignored.

### Are you willing to submit PR?

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

No files or tests are named. Start by searching the repository for utility classes and existing Lombok usage, then determine which classes qualify for @UtilityClass and which should be excluded; done means every applicable utility class is annotated without changing classes that do not qualify.

Written by the indexing model from the issue text.