Description of problem:
Message should be display correct when Edit virt-who configuration.
Message "#<ForemanVirtWhoConfigure::Config:0x000055f23eed3d30>' should not display, it is not readable.

Version-Release number of selected component (if applicable):
Satellite6.13.0 snapshot 15
katello-4.7.0-1.el8sat.noarch
rubygem-foreman_virt_who_configure-0.5.13-1.el8sat.noarch
rubygem-hammer_cli_foreman_virt_who_configure-0.0.9-2.el8sat.noarch

How reproducible:
100%

Steps to Reproduce:
1. create a virt-who config by UI
2. Edit the virt-who config and click submit. when it successfully edit the virt-who config ,it displays the following message
"Success
Successfully updated #<ForemanVirtWhoConfigure::Config:0x000055f23eed3d30>."

Actual results:
Edit virt-who config successfully, it display the Unreadable message "#<ForemanVirtWhoConfigure::Config:0x000055f23eed3d30>"

Expected results:
it should display the message like this
"ui_ahv_central virt-who Configuration has been successfully updated."

Additional info: