feat(entertainment): use CSPRNG in /guess & /roll

modules/Entertainment/Handler/Guess.cs

@@ -2,6 +2,7 @@
 using System.Collections.Concurrent;
 using System.Collections.Generic;
 using System.Linq;
+using System.Security.Cryptography;
 using System.Threading.Tasks;
 using BotFramework.Attributes;
 using BotFramework.Enums;
@@ -65,7 +66,7 @@ public class Guess : CommonHandler
         }
 
         var messageId = RawUpdate.Message!.MessageId;
-        var guessedNumber = _rng.Next(1, 4);
+        var guessedNumber = RandomNumberGenerator.GetInt32(1, 4);
         // Console.WriteLine(guessedNumber);
         var guessData = new GuessData
         {