build(deps): bump urllib3 from 1.25.3 to 1.25.8

Bumps [urllib3](https://github.com/urllib3/urllib3) from 1.25.3 to 1.25.8.
- [Release notes](https://github.com/urllib3/urllib3/releases)
- [Changelog](https://github.com/urllib3/urllib3/blob/main/CHANGES.rst)
- [Commits](urllib3/urllib3@1.25.3...1.25.8)

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

frozen-requirements.txt

@@ -69,7 +69,7 @@ tqdm==4.32.2
 twine==1.13.0
 typed-ast==1.4.0
 typing==3.7.4
-urllib3==1.25.3
+urllib3==1.25.8
 virtualenv==16.6.1
 watchdog==0.9.0
 wcwidth==0.1.7