Bump urllib3 from 1.26.17 to 1.26.18 in /envs (#69)

Bumps [urllib3](https://github.com/urllib3/urllib3) from 1.26.17 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@1.26.17...1.26.18)

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

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

envs/requirements.txt

@@ -107,7 +107,7 @@ tomli_w==1.0.0
 tomlkit==0.11.6
 typing_extensions==4.4.0
 ukkonen==1.0.1
-urllib3==1.26.17
+urllib3==1.26.18
 userpath==1.7.0
 virtualenv==20.17.0
 wcwidth==0.2.5