build(deps): bump urllib3 from 1.26.9 to 1.26.18

Bumps [urllib3](https://github.com/urllib3/urllib3) from 1.26.9 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@1.26.9...1.26.18)

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

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

Author: dependabot[bot]

requirements.txt

@@ -35,7 +35,7 @@ ruamel.yaml.clib==0.2.8
 schema==0.7.5
 shutils==0.1.0
 six==1.16.0
-urllib3==1.26.9
+urllib3==1.26.18
 virtualenv==20.24.5
 wcwidth==0.2.8
 websocket-client==1.6.4