fix(workspaces): duplicate added frameworks

[NathanWalker]

Occasionally when building within workspaces that have the same dependency defined at root and inside nested app package, xcode could add the framework again leading to:

warning: duplicate output file '/workspace/apps/project/platforms/ios/build/Debug-iphonesimulator/NativePlugin.framework' on task: ProcessXCFramework /workspace/node_modules/@nativescript/any-plugin/platforms/ios/NativePlugin.xcframework /workspace/apps/project/platforms/ios/build/Debug-iphonesimulator/NativePlugin.framework ios simulator

error: Multiple commands produce '/workspace/apps/project/platforms/ios/build/Debug-iphonesimulator/NativePlugin.framework'
    note: Command: ProcessXCFramework /workspace/apps/project/node_modules/@nativescript/any-plugin/platforms/ios/NativePlugin.xcframework /workspace/apps/project/platforms/ios/build/Debug-iphonesimulator/NativePlugin.framework ios simulator
    note: Command: ProcessXCFramework /workspace/node_modules/@nativescript/any-plugin/platforms/ios/NativePlugin.xcframework /workspace/apps/project/platforms/ios/build/Debug-iphonesimulator/NativePlugin.framework ios simulator

This adds protection in those settings to ensure duplicates are not added to prevent this.