Seems like flexy job is now isntalling clusters without credentials to registry.redhat.io.
While we are fixing this, we might even directly add pull secret for brew.registry.redhat.io.

Logic of adding credentials to pull sercret is in here: https://gitlab.cee.redhat.com/aosqe/flexy-templates/-/blob/master/functionality-testing/aos-4_6/hosts/launch_opts/generate_pullsecret_ca.rb

For registry.redhat.io we need to make sure to define `REG_REDHAT_USER` and `REG_REDHAT_PASSWORD`. For brew registry we could define `REG_BREW_OSBS_USER` and `REG_BREW_OSBS_PASSWORD`