Added metrics: true in addon.yml

src/main/resources/addon.yml

@@ -2,6 +2,7 @@ name: Challenges
 main: world.bentobox.challenges.ChallengesAddon
 version: ${version}
 repository: 'BentoBoxWorld/Challenges'
+metrics: true
 
 authors: tastybento
 
@@ -31,4 +32,4 @@ permissions:
     default: true
   skygrid.admin.challenges:
     description: Access challenge admin commands
-    default: op
+    default: op