chore(openapi): update kafka-admin/v1 OpenAPI document (#51)

Co-authored-by: app-services-ci <app-services-ci@users.noreply.github.com>

Author: app-services-ci

.openapi/kafka-admin-rest.yaml

@@ -835,6 +835,10 @@ components:
           description: Maximum of returned topics
           deprecated: true
           type: integer
+        count:
+          description: The total number of consumer groups.
+          deprecated: true
+          type: number
       example:
         count: 1
         limit: 10