Fix parsing of upgrade prechecks json output
Fix parsing of upgrade prechecks json output

SUSE-Cloud/automation,aspiers/automation,gosipyan/automation,gosipyan/automation,aspiers/automation,vmoravec/automation,SUSE-Cloud/automation,SUSE-Cloud/automation,aspiers/automation,vmoravec/automation,vmoravec/automation,vmoravec/automation,aspiers/automation,gosipyan/automation,SUSE-Cloud/automation,gosipyan/automation