Bump urllib3 from 1.25.3 to 1.26.5

Bumps [urllib3](https://github.com/urllib3/urllib3) from 1.25.3 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@1.25.3...1.26.5)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

requirements.txt

@@ -53,7 +53,7 @@ tensorflow-gpu==2.1.0
 termcolor==1.1.0
 Theano==1.0.4
 tqdm==4.41.1
-urllib3==1.25.3
+urllib3==1.26.5
 Werkzeug==0.15.5
 wrapt==1.11.2
 xdg==4.0.1