Develop PR tests red due to new audited gem version

Hello,

Version 4.7.0 of audited gem was released and causes PR tests to fail on SeedHelperTest.
I am working on fixing this as part of this PR:

https://github.com/theforeman/foreman/pull/5269

Until this is merged, if the only failing tests are the SeedHelperTest and a PR did not touch that area or auditing, it should be good to merge.