Bump urllib3 in /benchmarks/online-shop/recommendationservice

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: indirect
...

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

benchmarks/online-shop/recommendationservice/requirements.txt

@@ -112,5 +112,5 @@ six==1.16.0
     #   grpcio
 uritemplate==3.0.1
     # via google-api-python-client
-urllib3==1.26.17
+urllib3==1.26.18
     # via requests