Bump urllib3 from 1.26.4 to 1.26.6 (#29)

Bumps [urllib3](https://github.com/urllib3/urllib3) from 1.26.4 to 1.26.6.
- [Release notes](https://github.com/urllib3/urllib3/releases)
- [Changelog](https://github.com/urllib3/urllib3/blob/1.26.6/CHANGES.rst)
- [Commits](urllib3/urllib3@1.26.4...1.26.6)

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

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]