Bump urllib3 from 1.26.11 to 1.26.12

Bumps [urllib3](https://github.com/urllib3/urllib3) from 1.26.11 to 1.26.12.
- [Release notes](https://github.com/urllib3/urllib3/releases)
- [Changelog](https://github.com/urllib3/urllib3/blob/main/CHANGES.rst)
- [Commits](urllib3/urllib3@1.26.11...1.26.12)

---
updated-dependencies:
- dependency-name: urllib3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

requirements.txt

@@ -21,4 +21,4 @@ rsa==4.9
 schedule==1.1.0
 six==1.16.0
 toml==0.10.2
-urllib3==1.26.11
+urllib3==1.26.12