Use Errors helper.

Author: sharpjs

DependencyQueue/DependencyQueueCycleError.cs

@@ -17,9 +17,9 @@ internal DependencyQueueCycleError(
         DependencyQueueTopic<T> requiredTopic)
     {
         if (requiringEntry is null)
-            throw new ArgumentNullException(nameof(requiringEntry));
+            throw Errors.ArgumentNull(nameof(requiringEntry));
         if (requiredTopic is null)
-            throw new ArgumentNullException(nameof(requiredTopic));
+            throw Errors.ArgumentNull(nameof(requiredTopic));
 
         RequiringEntry = requiringEntry;
         RequiredTopic  = requiredTopic;

DependencyQueue/DependencyQueueUnprovidedTopicError.cs

@@ -15,7 +15,7 @@ public class DependencyQueueUnprovidedTopicError<T> : DependencyQueueError
     internal DependencyQueueUnprovidedTopicError(DependencyQueueTopic<T> topic)
     {
         if (topic is null)
-            throw new ArgumentNullException(nameof(topic));
+            throw Errors.ArgumentNull(nameof(topic));
 
         Topic = topic;
     }