MC-32120: Catalog price rules are not included in CartItemPrices

- Added review fixes

Author: Prabhu Ram

composer.lock

@@ -140,6 +140,10 @@ public function testGetCartTotalsWithCatalogRuleAndCartRuleApplied()
         self::assertEquals(18, $cartItem['prices']['row_total_including_tax']['value']);
         self::assertEquals(9, $cartItem['prices']['total_item_discount']['value']);
 
+        $discount = $cartItem['prices']['discounts'][0];
+        self::assertEquals("50% Off for all orders", $discount['label']);
+        self::assertEquals(9, $discount['amount']['value']);
+
         self::assertArrayHasKey('prices', $response['cart']);
         $pricesResponse = $response['cart']['prices'];
         self::assertEquals(9, $pricesResponse['grand_total']['value']);
@@ -277,6 +281,12 @@ private function getQuery(string $maskedQuoteId): string
         total_item_discount {
             value
         }
+        discounts {
+            label
+            amount {
+                value
+            }
+        }
       }
     }
     prices {