fix locker timeout issue.

src/Infrastructure/BotSharp.Core/Infrastructures/DistributedLocker.cs

@@ -12,7 +12,7 @@ public class DistributedLocker
         _settings = settings;
     }
 
-    public async Task Lock(string resource, Func<Task> action, int timeoutInSeconds = 30)
+    public async Task<T> Lock<T>(string resource, Func<Task<T>> action, int timeoutInSeconds = 30)
     {
         var timeout = TimeSpan.FromSeconds(timeoutInSeconds);
 
@@ -20,14 +20,12 @@ public class DistributedLocker
         var @lock = new RedisDistributedLock(resource, connection.GetDatabase());
         await using (var handle = await @lock.TryAcquireAsync(timeout))
         {
-            if (handle != null) 
-            {
-                await action();
-            }
-            else
+            if (handle == null) 
             {
                 Serilog.Log.Logger.Error($"Acquire lock for {resource} failed due to after {timeout}s timeout.");
             }
+            
+            return await action();
         }
     }