Bump urllib3 from 2.0.3 to 2.0.4 in /test

Bumps [urllib3](https://github.com/urllib3/urllib3) from 2.0.3 to 2.0.4.
- [Release notes](https://github.com/urllib3/urllib3/releases)
- [Changelog](https://github.com/urllib3/urllib3/blob/main/CHANGES.rst)
- [Commits](urllib3/urllib3@2.0.3...2.0.4)

---
updated-dependencies:
- dependency-name: urllib3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

test/requirements.ci.txt

@@ -2,5 +2,5 @@ docker==6.1.3
 grpcio==1.56.0
 protobuf==4.23.4
 requests==2.31.0
-urllib3==2.0.3
+urllib3==2.0.4
 websocket-client==1.6.1