chore(deps): bump @aws-cdk/toolkit-lib from 1.15.1 to 1.16.0 (#388)

* chore(deps): bump @aws-cdk/toolkit-lib from 1.15.1 to 1.16.0

Bumps [@aws-cdk/toolkit-lib](https://github.com/aws/aws-cdk-cli/tree/HEAD/packages/@aws-cdk/toolkit-lib) from 1.15.1 to 1.16.0.
- [Release notes](https://github.com/aws/aws-cdk-cli/releases)
- [Commits](https://github.com/aws/aws-cdk-cli/commits/@aws-cdk/toolkit-lib@v1.16.0/packages/@aws-cdk/toolkit-lib)

---
updated-dependencies:
- dependency-name: "@aws-cdk/toolkit-lib"
  dependency-version: 1.16.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

* fix: regenerate package-lock.json to restore missing yaml@2.8.2

npm install restores the node_modules/vitest/node_modules/yaml entry
that was incorrectly removed by Dependabot's lock file generation.

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Tejas Kashinath <tkashina@amazon.com>

Author: dependabot[bot]