chore(deps): Bump urllib3

Bumps [urllib3](https://github.com/urllib3/urllib3) from 1.26.17 to 1.26.18.
- [Release notes](https://github.com/urllib3/urllib3/releases)
- [Changelog](https://github.com/urllib3/urllib3/blob/main/CHANGES.rst)
- [Commits](urllib3/urllib3@1.26.17...1.26.18)

---
updated-dependencies:
- dependency-name: urllib3
  dependency-type: direct:production
...

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

packages/@aws-cdk/aws-lambda-python-alpha/test/lambda-handler/requirements.txt

@@ -2,6 +2,6 @@
 certifi==2023.7.22
 chardet==3.0.4
 idna==2.10
-urllib3==1.26.17
+urllib3==1.26.18
 # Requests used by this lambda
 requests==2.31.0