[entertainment] use thread safe random, update /roll number range

modules/Entertainment/Handler/Fun/AbstractAnimationReply.cs

@@ -5,6 +5,7 @@ using System.Text.RegularExpressions;
 using System.Threading.Tasks;
 using BotFramework;
 using Castle.Core.Internal;
+using Kruzya.TelegramBot.Core;
 using Kruzya.TelegramBot.Core.Data;
 using Kruzya.TelegramBot.Core.Extensions;
 using Microsoft.Extensions.Logging;
@@ -18,8 +19,9 @@ namespace West.Entertainment.Handler.Fun
         private readonly CoreContext _db;
 
         private readonly ILogger _logger;
+        private readonly ThreadSafeRandom _rng;
 
-        protected virtual TimeSpan Cooldown => TimeSpan.FromMinutes(new Random().Next(10, 1337));
+        protected virtual TimeSpan Cooldown => TimeSpan.FromMinutes(_rng.Next(10, 1337));
 
         protected Message? Message => RawUpdate.Message;
 
@@ -30,10 +32,11 @@ namespace West.Entertainment.Handler.Fun
             get;
         }
         
-        protected AbstractAnimationReply(CoreContext db, ILogger logger)
+        protected AbstractAnimationReply(CoreContext db, ILogger logger, ThreadSafeRandom rng)
         {
             _db = db;
             _logger = logger;
+            _rng = rng;
         }
         
         protected abstract string GetAnimationName();