Bump urllib3 from 1.26.4 to 1.26.5 (#12)

Bumps [urllib3](https://github.com/urllib3/urllib3) from 1.26.4 to 1.26.5.
- [Release notes](https://github.com/urllib3/urllib3/releases)
- [Changelog](https://github.com/urllib3/urllib3/blob/main/CHANGES.rst)
- [Commits](urllib3/urllib3@1.26.4...1.26.5)

---
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

@@ -72,7 +72,7 @@ toml==0.10.2
 translationstring==1.4
 typed-ast==1.4.2
 typing-extensions==3.7.4.3
-urllib3==1.26.4
+urllib3==1.26.5
 venusian==3.0.0
 waitress==1.4.4
 WebOb==1.8.6