build(deps): bump urllib3 from 1.26.7 to 1.26.18

Bumps [urllib3](https://github.com/urllib3/urllib3) from 1.26.7 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@1.26.7...1.26.18)

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

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

requirements.txt

@@ -15,6 +15,6 @@ psutil == 5.8.0
 py-irclib == 0.3.0
 pyowm == 3.3.0
 requests == 2.27.1
-urllib3 == 1.26.7
+urllib3 == 1.26.18
 watchdog == 2.1.6
 yarl == 1.8.2