Bump urllib3 from 1.26.15 to 1.26.18 (#181)

Bumps [urllib3](https://github.com/urllib3/urllib3) from 1.26.15 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@1.26.15...1.26.18)

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

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

pyproject.toml

@@ -18,7 +18,7 @@ aiohttp = "^3.6.2"
 requests = "^2.25.1"
 pyseto = "^1.6.11"
 protobuf = "^4.21.8"
-urllib3 = "1.26.15"
+urllib3 = "1.26.18"
 aiohttp-retry = "^2.8.3"
 
 [tool.poetry.dev-dependencies]