Add Jackson 3.x Plugin Support

[hungrytech]

Describe the feature you request

Fixture Monkey currently provides a Jackson plugin for object serialization/deserialization, but it only supports Jackson 2.x. Since Spring Boot 4 has adopted Jackson 3.x as the default, many projects are migrating to Jackson 3.x.

I would like to request adding a plugin that supports Jackson 3.x.

This would enable users working with Spring Boot 4.x environments to seamlessly use Fixture Monkey with their Jackson-annotated domain objects without compatibility issues.

(Optional): Suggest A Solution

Create a new module fixture-monkey-jackson-3 that:

1. Depends on Jackson 3.x libraries:

<dependency>
    <groupId>tools.jackson.core</groupId>
    <artifactId>jackson-databind</artifactId>
    <version>3.0.3</version>
</dependency>

2. Provides a Jackson3Plugin class:

public class Jackson3Plugin implements Plugin {
    // Jackson 3.x implementation
}

3. Maintains API compatibility with the existing JacksonPlugin for easy migration
   FixtureMonkey fixtureMonkey = FixtureMonkey.builder()
   .plugin(new Jackson3Plugin())
   .build();

If the feature request is approved, would you be willing to submit a PR?

Yes, I would be willing to submit a PR with guidance.