Bump urllib3 from 1.26.18 to 1.26.19 (#25)

Bumps [urllib3](https://github.com/urllib3/urllib3) from 1.26.18 to 1.26.19.
- [Release notes](https://github.com/urllib3/urllib3/releases)
- [Changelog](https://github.com/urllib3/urllib3/blob/1.26.19/CHANGES.rst)
- [Commits](urllib3/urllib3@1.26.18...1.26.19)

---
updated-dependencies:
- dependency-name: urllib3
  dependency-type: indirect
...

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

requirements.txt

@@ -51,7 +51,7 @@ requests==2.28.1
     # via lektor
 text-unidecode==1.3
     # via python-slugify
-urllib3==1.26.18
+urllib3==1.26.19
     # via requests
 watchdog==2.1.9
     # via lektor