VB: Hack to make the project build for SwiftUI tests

We need to rework the view model to remove its dependency on MatrixSDK

RiotSwiftUI/Modules/Room/VoiceBroadcastPlayback/VoiceBroadcastPlaybackViewModelProtocol.swift

@@ -16,6 +16,8 @@
 
 import Foundation
 
+typealias VoiceBroadcastPlaybackViewModelType = StateStoreViewModel<VoiceBroadcastPlaybackViewState, VoiceBroadcastPlaybackViewAction>
+
 protocol VoiceBroadcastPlaybackViewModelProtocol {
     var context: VoiceBroadcastPlaybackViewModelType.Context { get }    
 }