Problem description
Commonalities 0.5.0 contains an updated template for subscriptions https://github.com/camaraproject/Commonalities/blob/main/artifacts/camara-cloudevents/event-subscription-template.yaml

Possible evolution
Align all 3 subscription APIs with the template

• device-roaming-status-subscriptions
• device-reachability-status-subscriptions
• connected-network-type-subscriptions

Alternative solution

Additional context