Centralize Repository Declaration

[runningcode]

📜 Description

This is the offical way of centralizing repository declarations:
https://docs.gradle.org/current/userguide/centralizing_repositories.html

#skip-changelog

💡 Motivation and Context

💚 How did you test it?

📝 Checklist

• I added tests to verify the changes.
• No new PII added or SDK only sends newly added PII if sendDefaultPII is enabled.
• I updated the docs if needed.
• I updated the wizard if needed.
• Review from the native team if needed.
• No breaking change or entry added to the changelog.
• No breaking change for hybrid SDKs or communicated to hybrid SDKs.

🔮 Next steps