Bump urllib3 from 1.25.6 to 1.26.5

Bumps [urllib3](https://github.com/urllib3/urllib3) from 1.25.6 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@1.25.6...1.26.5)

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

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

Author: dependabot[bot]

requirements.txt

@@ -31,5 +31,5 @@ torch==1.2.0
 torchvision==0.4.0
 tqdm==4.36.1
 traitlets==4.3.3
-urllib3==1.25.6
+urllib3==1.26.5
 wcwidth==0.1.7