chore(appsync): don't retain dynamodb tables (#6401)

Correctly tear down the tables created in the context of the test.

Signed-off-by: Duarte Nunes <duarte@uma.ni>

Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

Author: mergify[bot]

packages/@aws-cdk/aws-appsync/test/integ.graphql.expected.json

@@ -574,8 +574,8 @@
         ],
         "BillingMode": "PAY_PER_REQUEST"
       },
-      "UpdateReplacePolicy": "Retain",
-      "DeletionPolicy": "Retain"
+      "UpdateReplacePolicy": "Delete",
+      "DeletionPolicy": "Delete"
     },
     "OrderTable416EB896": {
       "Type": "AWS::DynamoDB::Table",
@@ -602,8 +602,8 @@
         ],
         "BillingMode": "PAY_PER_REQUEST"
       },
-      "UpdateReplacePolicy": "Retain",
-      "DeletionPolicy": "Retain"
+      "UpdateReplacePolicy": "Delete",
+      "DeletionPolicy": "Delete"
     }
   }
 }

packages/@aws-cdk/aws-appsync/test/integ.graphql.ts

@@ -1,6 +1,6 @@
 import { UserPool } from '@aws-cdk/aws-cognito';
 import { AttributeType, BillingMode, Table } from '@aws-cdk/aws-dynamodb';
-import { App, Stack } from '@aws-cdk/core';
+import { App, RemovalPolicy, Stack } from '@aws-cdk/core';
 import { join } from 'path';
 import { GraphQLApi, KeyCondition, MappingTemplate, PrimaryKey, UserPoolDefaultAction, Values } from '../lib';
 
@@ -35,6 +35,7 @@ const customerTable = new Table(stack, 'CustomerTable', {
         name: 'id',
         type: AttributeType.STRING,
     },
+    removalPolicy: RemovalPolicy.DESTROY,
 });
 const orderTable = new Table(stack, 'OrderTable', {
     billingMode: BillingMode.PAY_PER_REQUEST,
@@ -45,7 +46,8 @@ const orderTable = new Table(stack, 'OrderTable', {
     sortKey: {
         name: 'order',
         type: AttributeType.STRING,
-    }
+    },
+    removalPolicy: RemovalPolicy.DESTROY,
 });
 
 const customerDS = api.addDynamoDbDataSource('Customer', 'The customer data source', customerTable);