add: react-native-health-kits

[dayaki]

📝 Why & how

✅ Checklist

• Added library to react-native-libraries.json
• Updated library in react-native-libraries.json

• Documented how you found or replicated the issue.
• Explained how you fixed the issue or built the feature.
• Described how to use or verify the change.

[Simek]

Hey @dayaki, thanks for adding new package to the directory! 👌