Update playground/CommandInfoUpdater/CommandInfoUpdater.cs

Co-authored-by: Lukas Maas <[email protected]>

playground/CommandInfoUpdater/CommandInfoUpdater.cs

@@ -269,7 +269,7 @@ private static bool GetUserConfirmation(IReadOnlyDictionary<string, RespCommands
         /// <param name="commandsInfo">Queried commands info</param>
         /// <returns>True if succeeded</returns>
         private static unsafe bool TryGetCommandsInfo(string[] commandsToQuery, int respServerPort,
-            IPAddress respServerHost, ILogger logger, out IDictionary<string, RespCommandsInfo> commandsInfo)
+            IPAddress respServerHost, ILogger logger, out IDictionary<string, RespCommandsInfo>? commandsInfo)
         {
             commandsInfo = default;