publish version to aws-cdk-lib domain

[Gum-Christopher-bah]

Because this package is published to @aws-cdk cdk projects using projen report this as a cdk v1 dependency

WARNING: Found CDK v1 deps in your project, even though your "cdkVersion" is 2.x: [@aws-cdk/lambda-layer-kubectl-v31]. Check out https://docs.aws.amazon.com/cdk/v2/guide/migrating-v2.html for more information about using CDK v2 dependencies.

Alternatively, publish to another domain that does not get flagged. This warning makes it look like this is not the correct package to use.