Bump urllib3 from 1.26.5 to 1.26.18

Bumps [urllib3](https://github.com/urllib3/urllib3) from 1.26.5 to 1.26.18.
- [Release notes](https://github.com/urllib3/urllib3/releases)
- [Changelog](https://github.com/urllib3/urllib3/blob/main/CHANGES.rst)
- [Commits](urllib3/urllib3@1.26.5...1.26.18)

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

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

requirements.dev.txt

@@ -53,6 +53,6 @@ torch==1.13.1
 torchsummary==1.5.1
 tornado>=6.1
 tqdm>=4.51.0
-urllib3==1.26.5
+urllib3==1.26.18
 wrapt==1.11.2
 zmq==0.0.0