chore(dynamodb-global): migrate to Assertions (#18515)

----

*By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license*

Author: skinny85

packages/@aws-cdk/aws-dynamodb-global/package.json

@@ -56,7 +56,7 @@
     "constructs": "^3.3.69"
   },
   "devDependencies": {
-    "@aws-cdk/assert-internal": "0.0.0",
+    "@aws-cdk/assertions": "0.0.0",
     "@aws-cdk/cdk-build-tools": "0.0.0",
     "@aws-cdk/cdk-integ-tools": "0.0.0",
     "@aws-cdk/pkglint": "0.0.0",

packages/@aws-cdk/aws-dynamodb-global/test/dynamodb-global.test.ts

@@ -1,4 +1,4 @@
-import '@aws-cdk/assert-internal/jest';
+import { Template } from '@aws-cdk/assertions';
 import { Attribute, AttributeType, StreamViewType, Table } from '@aws-cdk/aws-dynamodb';
 import { describeDeprecated, testDeprecated } from '@aws-cdk/cdk-build-tools';
 import { App, CfnOutput, Stack } from '@aws-cdk/core';
@@ -26,7 +26,7 @@ describeDeprecated('Default Global DynamoDB stack', () => {
     const topStack = stack.node.findChild(CONSTRUCT_NAME) as Stack;
     for ( const reg of STACK_PROPS.regions ) {
       const tableStack = topStack.node.findChild(CONSTRUCT_NAME + '-' + reg) as Stack;
-      expect(tableStack).toHaveResource('AWS::DynamoDB::Table', {
+      Template.fromStack(tableStack).hasResourceProperties('AWS::DynamoDB::Table', {
         'KeySchema': [
           {
             'AttributeName': 'hashKey',
@@ -46,12 +46,12 @@ describeDeprecated('Default Global DynamoDB stack', () => {
       });
     }
     const customResourceStack = stack.node.findChild(CONSTRUCT_NAME + '-CustomResource') as Stack;
-    expect(customResourceStack).toHaveResource('AWS::Lambda::Function', {
+    Template.fromStack(customResourceStack).hasResourceProperties('AWS::Lambda::Function', {
       Description: 'Lambda to make DynamoDB a global table',
       Handler: 'index.handler',
       Timeout: 300,
     });
-    expect(customResourceStack).toHaveResource('AWS::CloudFormation::CustomResource', {
+    Template.fromStack(customResourceStack).hasResourceProperties('AWS::CloudFormation::CustomResource', {
       Regions: STACK_PROPS.regions,
       ResourceType: 'Custom::DynamoGlobalTableCoordinator',
       TableName: TABLE_NAME,
@@ -75,7 +75,7 @@ testDeprecated('GlobalTable generated stacks inherit their account from the pare
     value: globalTable.regionalTables[0].tableStreamArn!,
   });
 
-  expect(stack).toMatchTemplate({
+  Template.fromStack(stack).templateMatches({
     'Outputs': {
       'DynamoDbOutput': {
         'Value': {