fix: GeneaLabs/laravel-model-caching issue mikebronner#448 mikebronner#449

Author: JamesPJ

src/Traits/ModelCaching.php

@@ -79,7 +79,7 @@ public static function bootCachable()
             $instance->checkCooldownAndFlushAfterPersisting($instance, $relationship);
         });
 
-        static::pivotAttached(function ($instance, $secondInstance, $relationship) {
+        static::pivotAttached(function ($instance, $relationship) {
             $instance->checkCooldownAndFlushAfterPersisting($instance, $relationship);
         });