chore(deps): bump urllib3 from 1.26.13 to 2.6.0 in /tools/python

Bumps [urllib3](https://github.com/urllib3/urllib3) from 1.26.13 to 2.6.0.
- [Release notes](https://github.com/urllib3/urllib3/releases)
- [Changelog](https://github.com/urllib3/urllib3/blob/main/CHANGES.rst)
- [Commits](urllib3/urllib3@1.26.13...2.6.0)

---
updated-dependencies:
- dependency-name: urllib3
  dependency-version: 2.6.0
  dependency-type: direct:production
...

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

Author: dependabot[bot]

tools/python/requirements.txt

@@ -27,4 +27,4 @@ slack-cleaner2==3.2.0
 slack-sdk==3.19.5
 slacker==0.14.0
 uritemplate==4.1.1
-urllib3==1.26.13
+urllib3==2.6.0