Bump urllib3 from 1.7.1 to 1.26.5

Bumps [urllib3](https://github.com/urllib3/urllib3) from 1.7.1 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@1.7.1...1.26.5)

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

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

Author: dependabot[bot]

requirements-old.txt

@@ -145,7 +145,7 @@ traitlets==4.3.1
 ua-parser==0.3.6
 Unidecode==0.4.18
 unittest2==0.5.1
-urllib3==1.7.1
+urllib3==1.26.5
 user-agents==0.3.2
 uwsgitop==0.10
 vatnumber==1.1