B2B-2451: [DEBUG] Implement GraphQL Resolver Cache for CMS Page Type

Author: danmooney2

app/code/Magento/GraphQlCache/Observer/InvalidateGraphQlResolverCacheObserver.php

@@ -7,6 +7,7 @@
 
 namespace Magento\GraphQlCache\Observer;
 
+use Magento\Cms\Api\Data\PageInterface;
 use Magento\Framework\App\Cache\StateInterface as CacheState;
 use Magento\Framework\App\Cache\Tag\Resolver as TagResolver;
 use Magento\Framework\Event\ObserverInterface;
@@ -60,6 +61,10 @@ public function execute(Observer $observer)
             return;
         }
 
+        if (!($object instanceof PageInterface)) {
+            return;
+        }
+
         if (!$this->cacheState->isEnabled(GraphQlResolverCache::TYPE_IDENTIFIER)) {
             return;
         }