feat: capacitor 8

[jayenashar]

Is your feature request related to a problem? Please describe:

getting this error when building:

        xcodebuild: error: Could not resolve package dependencies:
        Failed to resolve dependencies Dependencies could not be resolved
        because 'apple-sign-in' depends on 'capacitor-swift-pm' 7.0.0..<8.0.0
        and 'splash-screen' depends on 'capacitor-swift-pm' 8.0.0..<9.0.0.

Describe the solution you'd like:

would like it to build (using npx cap build ios)

Describe alternatives you've considered:

considering rolling back to capacitor 7

looking if i can use #132 before it's merged

Additional context: