chore: synced local 'openapi.yaml' with remote 'specs/openapi.yaml'

Author: sumup-machine-user

openapi.yaml

@@ -6997,6 +6997,14 @@ components:
           $ref: '#/components/schemas/ReaderDevice'
         metadata:
           $ref: '#/components/schemas/Metadata'
+        service_account_id:
+          description: |-
+            Identifier of the system-managed service account associated with this reader.
+            Present only for readers that are already paired.
+            This field is currently in beta and may change.
+          type: string
+          format: uuid
+          x-beta: true
         created_at:
           description: The timestamp of when the reader was created.
           type: string