Upgrade version of @aws-cdk/core

[csrs]

From https://www.npmjs.com/package/@aws-cdk/core:

AWS CDK v1 has reached End-of-Support on 2023-06-01. This package is no longer being updated, and users should migrate to AWS CDK v2. For more information on how to migrate, see https://docs.aws.amazon.com/cdk/v2/guide/migrating-v2.html

These also have that message: https://www.npmjs.com/package/@aws-cdk/aws-s3 https://www.npmjs.com/package/@aws-cdk/aws-s3-deployment https://www.npmjs.com/package/@aws-cdk/aws-cloudfront https://www.npmjs.com/package/@aws-cdk/aws-cloudfront-origins https://www.npmjs.com/package/@aws-cdk/aws-route53 https://www.npmjs.com/package/@aws-cdk/aws-route53-targets