Bump urllib3 from 1.26.4 to 1.26.5

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>

Author: dependabot[bot]

requirements.txt

@@ -4,7 +4,7 @@ flask-wtf==0.14.3
 jsmin==2.2.2
 cssmin==0.2.0
 requests==2.25.1
-urllib3==1.26.4
+urllib3==1.26.5
 wtforms==2.3.3
 python-dotenv==0.17.0
 black==20.8b1