Bump aws-cdk-lib from 2.218.0 to 2.221.1 (#508)

Bumps [aws-cdk-lib](https://github.com/aws/aws-cdk) from 2.218.0 to 2.221.1.
- [Release notes](https://github.com/aws/aws-cdk/releases)
- [Changelog](https://github.com/aws/aws-cdk/blob/main/CHANGELOG.v2.alpha.md)
- [Commits](aws/aws-cdk@v2.218.0...v2.221.1)

---
updated-dependencies:
- dependency-name: aws-cdk-lib
  dependency-version: 2.221.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

requirements.txt

@@ -1,3 +1,3 @@
-aws-cdk-lib==2.218.0
+aws-cdk-lib==2.221.1
 aws-cdk.aws-lambda-python-alpha==2.218.0a0
 constructs>=10.0.0,<11.0.0