[deps] Update openwisp-utils[qa,selenium] requirement

Updates the requirements on [openwisp-utils[qa,selenium]](https://github.com/openwisp/openwisp-utils) to permit the latest version.
- [Release notes](https://github.com/openwisp/openwisp-utils/releases)
- [Changelog](https://github.com/openwisp/openwisp-utils/blob/master/CHANGES.rst)
- [Commits](openwisp/openwisp-utils@1.2.0...1.2.1)

---
updated-dependencies:
- dependency-name: openwisp-utils[qa,selenium]
  dependency-version: 1.2.1
  dependency-type: direct:production
...

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

Author: dependabot[bot]

requirements-test.txt

@@ -1,2 +1,2 @@
 docker>=7.1.0,<7.2.0
-openwisp-utils[qa,selenium]~=1.2.0
+openwisp-utils[qa,selenium]~=1.2.1