Registry client commands should not be executed with sudo

[lubosmj]

At the moment, all registry client commands are executed with sudo permissions:

pulp-smash/pulp_smash/cli.py

Line 1028 in 7f8d1de

result = self._client.run(cmd, sudo=True)

This should not be needed for podman. But, some commands may try to access files that require sudo permissions. As a result, we would probably need to specify, e.g., --authfile parameter in some cases, like so:

podman login -u admin -p password --authfile=$HOME/containers/auth.json pulp3-source-fedora35.localhost.example.com

podman pull pulp3-source-fedora35.localhost.example.com/test:asfd --authfile=$HOME/containers/auth.json