Bump urllib3 from 1.26.8 to 1.26.18 in /devtools

Bumps [urllib3](https://github.com/urllib3/urllib3) from 1.26.8 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@1.26.8...1.26.18)

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

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

devtools/requirements.txt

@@ -172,7 +172,7 @@ tqdm==4.63.0
 traitlets==5.1.1
 typing_extensions==4.1.1
 umap-learn==0.5.2
-urllib3==1.26.8
+urllib3==1.26.18
 wcwidth==0.2.5
 webencodings==0.5.1
 Werkzeug==2.2.3