Wrong credentialType value PRIVATE_JWT_KEY in subscription test definitions #149

Problem description

The subscription feature files use PRIVATE_JWT_KEY as the sinkCredential.credentialType value. The value defined by the API (SinkCredential.credentialType, from Commonalities CAMARA_event_common.yaml) is PRIVATE_KEY_JWT. A conformant implementation rejects PRIVATE_JWT_KEY with 400 and never returns it, so these scenarios cannot pass. The typo comes from the Commonalities event-subscription test template, see camaraproject/Commonalities#728.

Expected action

Replace PRIVATE_JWT_KEY with PRIVATE_KEY_JWT, and private_jwt_key with private_key_jwt in scenario tags:

• code/Test_definitions/device-data-volume-subscriptions-createDeviceDataVolumeSubscription.feature: L195, L199, L207, L211, L219 (value); L194, L206, L467 (tags)
• code/Test_definitions/device-data-volume-subscriptions-retrieveDeviceDataVolumeSubscription.feature: L67, L68, L75 (value); L65 (tag)

Additional context

Line numbers refer to main at f3daedf. Also present in the published r2.2.