Compatibility with oj_serializers 3.0



oj_serializers 3.0 has been released, but this library is restricted to 2.x. It seems they are compatible though? Is it possible to relax the restriction?

### Reproduction/Logs 🐞📜
```gem install types_from_serializers```

### Screenshots 📷

<img width="677" height="624" alt="Image" src="https://github.com/user-attachments/assets/9d9759da-3740-4f39-88e4-0b5b60947297" />