Change the version number being used

Author: a-maurice

vertexai/src/GenerativeModel.cs

@@ -321,7 +321,7 @@ private async Task SetRequestHeaders(HttpRequestMessage request) {
     request.Headers.Add("x-goog-api-client", $"genai-csharp/{version}");
     if (FirebaseInterops.GetIsDataCollectionDefaultEnabled(_firebaseApp)) {
       request.Headers.Add("X-Firebase-AppId", _firebaseApp.Options.AppId);
-      request.Headers.Add("X-Firebase-AppVersion", version);
+      request.Headers.Add("X-Firebase-AppVersion", UnityEngine.Application.version);
     }
     // Add additional Firebase tokens to the header.
     await FirebaseInterops.AddFirebaseTokensAsync(request, _firebaseApp);

vertexai/src/LiveGenerativeModel.cs

@@ -94,7 +94,7 @@ public async Task<LiveSession> ConnectAsync(CancellationToken cancellationToken
     clientWebSocket.Options.SetRequestHeader("x-goog-api-client", $"genai-csharp/{version}");
     if (FirebaseInterops.GetIsDataCollectionDefaultEnabled(_firebaseApp)) {
       clientWebSocket.Options.SetRequestHeader("X-Firebase-AppId", _firebaseApp.Options.AppId);
-      clientWebSocket.Options.SetRequestHeader("X-Firebase-AppVersion", version);
+      clientWebSocket.Options.SetRequestHeader("X-Firebase-AppVersion", UnityEngine.Application.version);
     }
     // Add additional Firebase tokens to the header.
     await FirebaseInterops.AddFirebaseTokensAsync(clientWebSocket, _firebaseApp);