Bump urllib3 from 1.26.17 to 1.26.18 (#1085)

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](https://github.com/urllib3/urllib3/compare/1.26.17...1.26.18)

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

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

requirements.txt

@@ -29,7 +29,7 @@ python-dateutil==2.8.2
 requests==2.31.0
 soupsieve==2.4
 stem==1.8.1
-urllib3==1.26.17
+urllib3==1.26.18
 validators==0.22.0
 waitress==2.1.2
 wcwidth==0.2.6