Description of problem:
ceph orch upgrade returns output in same format for all values for format

Version-Release number of selected component (if applicable):
16.2.7-37.el8cp

How reproducible:
Always

Steps to Reproduce:
1. Configure a cluster and check `ceph orch upgrade status --format` with all allowed values

Actual results:
# ceph orch upgrade status 
{
    "target_image": null,
    "in_progress": false,
    "services_complete": [],
    "progress": null,
    "message": ""
}
[ceph: root@folio08 /]# ceph orch upgrade status --format yaml       
{
    "target_image": null,
    "in_progress": false,
    "services_complete": [],
    "progress": null,
    "message": ""
}
[ceph: root@folio08 /]# ceph orch upgrade status --format xml 
{
    "target_image": null,
    "in_progress": false,
    "services_complete": [],
    "progress": null,
    "message": ""
}

Expected results:
Output to follow allowed inputs for the argument `--format`

Additional info: