Bump urllib3 from 1.26.7 to 1.26.19

Bumps [urllib3](https://github.com/urllib3/urllib3) from 1.26.7 to 1.26.19.
- [Release notes](https://github.com/urllib3/urllib3/releases)
- [Changelog](https://github.com/urllib3/urllib3/blob/main/CHANGES.rst)
- [Commits](urllib3/urllib3@1.26.7...1.26.19)

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

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

requirements.txt

@@ -97,7 +97,7 @@ six==1.16.0
     #   furl
     #   orderedmultidict
     #   python-dateutil
-urllib3==1.26.7
+urllib3==1.26.19
     # via requests
 vobject==0.9.6.1
     # via