Xiaomi Miio workaround

🧩 Syntax:
- template: vacuum_clean_segment
    repeats_type: EXTERNAL
    service_call_schema:
      service: vacuum.send_command
      service_data:
        command: app_segment_clean
        entity_id: "[[entity_id]]"
        params:
          - segments: "[[selection]]"
            repeat: "[[repeats]]"