Description of problem:

The "hammer CLI" does not allows performing the Validate Content\Verify Checksum action on docker type repos but Satellite GUI allows doing so.


Version-Release number of selected component (if applicable):

satellite-6.13.0-6.el8sat.noarch
katello-4.7.0-1.el8sat.noarch
rubygem-hammer_cli_katello-1.7.2-1.el8sat.noarch

How reproducible:
Always

Steps to Reproduce:
1. Install a Satellite 6.13 and import a manifest with some valid subs
2. Use the repo_discovery feature to discover the "ubi8/toolbox" repo and create it inside the Containers product
3. Sync the repo from Satellite UI
4. Use hammer command to run "Validate Content\Verify Checksum" on the repo
5. Go to Satellite UI Content --> Products --> Containers --> Repositories --> ubi8/toolbox --> Select Action dropdown --> Verify Content Checksum


Actual results:

Step 4:

# hammer repository list --fields Id,Name
---|--------------------------------------------------
ID | NAME                                             
---|--------------------------------------------------
1  | Red Hat Satellite Client 6 for RHEL 8 x86_64 RPMs
2  | ubi8/toolbox                                     
---|--------------------------------------------------

# hammer repository synchronize --id 2 --validate-contents true
Could not synchronize the repository:
  Cannot validate contents on non-yum/deb repositories.
  

Step 5: Success i.e. UI allows to perform the action on the same repo and initiates the task ( it does not matter for now if it fails )


Expected results:

hammer and UI behavior should remain consistent with each other. 


Additional info:

NA