Bump urllib3 from 1.26.15 to 1.26.17 in /lib/chatsecure

Bumps [urllib3](https://github.com/urllib3/urllib3) from 1.26.15 to 1.26.17.
- [Release notes](https://github.com/urllib3/urllib3/releases)
- [Changelog](https://github.com/urllib3/urllib3/blob/main/CHANGES.rst)
- [Commits](urllib3/urllib3@1.26.15...1.26.17)

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

Signed-off-by: dependabot[bot] <support@github.com>

lib/chatsecure/requirements.txt

@@ -36,6 +36,6 @@ pytz==2022.7.1
 requests==2.31.0
 six==1.16.0
 tomli==2.0.1
-urllib3==1.26.15
+urllib3==1.26.17
 Werkzeug==2.2.3
 zipp==3.14.0