### Summary

Since dnf is not installing the packages when running `dnf download --downloadonly...`, it does not require root access to pull down the rpms. It would be nice if ansible followed the same pattern.

### Issue Type

Feature Idea

### Component Name

dnf

### Additional Information

<!--- Paste example playbooks or commands between quotes below -->
```yaml (paste below)
    - name: Download RPM's
      dnf:
        name: "{{ item }}"
        state: present
        download_only: yes
        download_dir: "{{ rpms_path }}"
      loop: "{{ rpms }}"
```


### Code of Conduct

- [X] I agree to follow the Ansible Code of Conduct
"""Configure the dnf Base object."""
        conf = base.conf
        
        if conf_file:
            
            if not os.access(conf_file, os.R_OK):
                self.module.fail_json(
                    msg="cannot read configuration file", conf_file=conf_file,
                    results=[],
                )
            else:
                conf.config_file_path = conf_file
        
        conf.read()
        
        conf.debuglevel = 0
        
        conf.gpgcheck = not disable_gpg_check
        conf.localpkg_gpgcheck = not disable_gpg_check