Cocoapods deprecation

[roryabraham]

Cocoapods is slated to be EOL in December 2026. Creating this issue as a reminder to investigate what's needed to transition fully to Swift Package Manager.

Some resources:

• https://dev.to/estolegion/react-native-roadmap-to-swift-package-manager-2026-3elg
• https://www.callstack.com/blog/integrating-swift-package-manager-with-react-native-libraries