Release 0.4.0

What's Changed

• Ignore non-annotated model_config attributes by @Viicos in #16
• Add support for Python 3.13 by @Viicos in #17
• Update dependencies by @Viicos in #18
• Prepare release 0.4.0 by @Viicos in #19

Full Changelog: 0.3.1...0.4.0