cdk-dia installs deprecated AWS CDK v1 libraries - causes warnings during install

[sammcj]

It looks like cdk-dia is relying on the (very) old CDK v1 libraries - https://github.com/pistazie/cdk-dia/blob/main/package.json#L37

This causes lots of warnings in any projects that use the library, for example - the following are dependencies when cdk-dia is included:

npm WARN deprecated @aws-cdk/cloud-assembly-schema@1.204.0: AWS CDK v1 has reached End-of-Support on 2023-06-01.
npm WARN deprecated This package is no longer being updated, and users should migrate to AWS CDK v2.
npm WARN deprecated
npm WARN deprecated For more information on how to migrate, see https://docs.aws.amazon.com/cdk/v2/guide/migrating-v2.html
npm WARN deprecated @aws-cdk/cx-api@1.204.0: AWS CDK v1 has reached End-of-Support on 2023-06-01.
npm WARN deprecated This package is no longer being updated, and users should migrate to AWS CDK v2.
npm WARN deprecated
npm WARN deprecated For more information on how to migrate, see https://docs.aws.amazon.com/cdk/v2/guide/migrating-v2.html
npm WARN deprecated @aws-cdk/core@1.204.0: AWS CDK v1 has reached End-of-Support on 2023-06-01.
npm WARN deprecated This package is no longer being updated, and users should migrate to AWS CDK v2.
npm WARN deprecated
npm WARN deprecated For more information on how to migrate, see https://docs.aws.amazon.com/cdk/v2/guide/migrating-v2.html
npm WARN deprecated @aws-cdk/region-info@1.204.0: AWS CDK v1 has reached End-of-Support on 2023-06-01.
npm WARN deprecated This package is no longer being updated, and users should migrate to AWS CDK v2.
npm WARN deprecated
npm WARN deprecated For more information on how to migrate, see https://docs.aws.amazon.com/cdk/v2/guide/migrating-v2.html