MC-18009: Disabled Products Do Not Appear in Search Results of Link Attribute

 - update tests

Author: cspruiell

dev/tests/integration/testsuite/Magento/Catalog/Controller/Adminhtml/Product/SearchTest.php

@@ -38,7 +38,7 @@ public function testExecuteNonExistingSearchKey() : void
             ->setPostValue('limit', 50);
         $this->dispatch('backend/catalog/product/search');
         $responseBody = $this->getResponse()->getBody();
-        $jsonResponse = json_decode($responseBody);
+        $jsonResponse = json_decode($responseBody, true);
         $this->assertEmpty($jsonResponse['options']);
     }
 
@@ -58,7 +58,7 @@ public function testExecuteNotVisibleIndividuallyProducts() : void
             ->setPostValue('limit', 50);
         $this->dispatch('backend/catalog/product/search');
         $responseBody = $this->getResponse()->getBody();
-        $jsonResponse = json_decode($responseBody);
+        $jsonResponse = json_decode($responseBody, true);
         $this->assertEquals(1, $jsonResponse['total']);
         $this->assertCount(1, $jsonResponse['options']);
     }
@@ -74,7 +74,7 @@ public function testExecuteEnabledAndDisabledProducts() : void
             ->setPostValue('limit', 50);
         $this->dispatch('backend/catalog/product/search');
         $responseBody = $this->getResponse()->getBody();
-        $jsonResponse = json_decode($responseBody);
+        $jsonResponse = json_decode($responseBody, true);
         $this->assertEquals(7, $jsonResponse['total']);
         $this->assertCount(7, $jsonResponse['options']);
     }