Call base.OnWriteCompleted() from the override class

Author: DanF-ApexSystems

com.playeveryware.eos/Runtime/Core/Config/ProductConfig.cs

@@ -328,6 +328,8 @@ private void UpdatePlatformConfigClientCredentials()
 
         protected override void OnWriteCompleted()
         {
+            base.OnWriteCompleted();
+
             // Update the platform config deployments if needed.
             UpdatePlatformConfigDeployments();