[gmuratk]

What type of PR is this?

Add one of the following kinds:

• bug

What this PR does / why we need it:

To address the validation warnings reported during snapshot r2.2 validation

Which issue(s) this PR fixes:

Fixes #

Special notes for reviewers:

@Masa8106 - I reviewed the report generated for the snapshot and this PR should address the warnings reported for QoS B&A.

Changelog input

 release-note

- API spec: replaced the `identifying-device-from-access-token` section of `info.description` with the canonical Commonalities template (the API-specific 3-legged token guidance remains in its own section).
- API spec: removed the unused `BOOKING_CANCELLED` example from `components/examples`.
- API spec: added a `pattern` (`^[A-Z][A-Z0-9_]*$`) to the `BookingStatusInfo` schema.
- Test definitions: restructured the scenarios that follow up on a prior operation so each has a single When/Then (Given/When/Then order):
  - `createBooking`: created booking can be read with `getBookingById`
  - `deleteBooking`: deleted booking can no longer be read
  - `assignDevices`: assigned devices are returned by `getDevicesByBookingId`
  - `releaseDevices`: released devices are no longer returned by `getDevicesByBookingId`

Additional documentation

This section can be blank.

docs

[Masa8106]

@gmuratk, sorry for my late response, however, thank you for creating this PR.
LGTM. I will re-create a snapshot.