[pike->queens] Ceph upgrade is missing validation-errors-nonfatal argument

Upstream CI job needs the addition of the validation-errors-nonfatal flag when upgrading ceph, otherwise the mistral workflow doesn't get to start as validations fail:

ction': None, u'glance': None, u'hypervisor_stats': None, u'virtual_interfaces': None, u'flavors': None, u'availability_zones': None, u'user_id': None, u'cloudpipe': None, u'os_cache': False, u'quotas': None, u'migrations': None, u'usage': None, u'logger': None, u'project_id': None, u'neutron': None, u'quota_classes': None, u'project_name': None, u'aggregates': None, u'flavor_access': None, u'services': None, u'list_extensions': None, u'limits': None, u'hypervisors': None, u'cells': None, u'versions': None, u'client': None, u'hosts': None, u'volumes': None, u'assisted_volume_snapshots': None, u'certs': None}}, u'x_openstack_request_ids': [u'req-190076f7-dd33-49ec-ace2-f1c86f02f078'], u'memory_mb': 0, u'current_workload': 0, u'vcpus': 0, u'running_vms': 0, u'free_disk_gb': 0, u'disk_available_least': 0, u'_info': {u'count': 0, u'vcpus_used': 0, u'local_gb_used': 0, u'memory_mb': 0, u'current_workload': 0, u'vcpus': 0, u'running_vms': 0, u'free_disk_gb': 0, u'disk_available_least': 0, u'local_gb': 0, u'free_ram_mb': 0, u'memory_mb_used': 0}, u'local_gb': 0, u'free_ram_mb': 0, u'memory_mb_used': 0, u'_loaded': True}, u'requested_count': 1, u'enough_nodes'Configuration has 18 errors, fix them before proceeding. Ignoring these errors is likely to lead to a failed deploy.

: False}, u'warnings': []}
ERRORS
[u"No image with the name 'bm-deploy-kernel' found - make sure you have uploaded boot images.", u"No image with the name 'bm-deploy-ramdisk' found - make sure you have uploaded boot images.", u'Not enough baremetal nodes - available: 0, requested: 1', u'Not enough baremetal nodes - available: 0, requested: 1', u'Not enough baremetal nodes - available: 0, requested: 1', u'Not enough baremetal nodes - available: 0, requested: 1', u'Not enough baremetal nodes - available: 0, requested: 1', u'Not enough baremetal nodes - available: 0, requested: 1', u'Not enough baremetal nodes - available: 0, requested: 1', u'Not enough baremetal nodes - available: 0, requested: 1', u'Not enough baremetal nodes - available: 0, requested: 1', u'Not enough baremetal nodes - available: 0, requested: 1', u'Not enough baremetal nodes - available: 0, requested: 1', u'Not enough baremetal nodes - available: 0, requested: 1', u'Not enough baremetal nodes - available: 0, requested: 1', u"No image with the name 'bm-deploy-kernel' found - make sure you have uploaded boot images.", u"No image with the name 'bm-deploy-ramdisk' found - make sure you have uploaded boot images.", u'Not enough baremetal nodes - available: 0, requested: 1']