Swift Package Manager

### Is there an existing feature request for this? - [x] I have searched the existing feature request ### Operating System iOS ### Pain It would be great if you could switch to Swift Package Manager. I'm getting: The following plugins do not support Swift Package Manager for ios: - flutter_inappwebview_ios - ... This will become an error in a future version of Flutter. Please contact the plugin maintainers to request Swift Package Manager adoption. ### Suggested solution support Swift Package Manager 🙏🏻 ### Useful resources _No response_ ### Additional information _No response_ ### Self grab - [ ] I'm ready to work on this issue!