ESPHome 2024.6.1 Compile Error

It looks like converting the hardware UART to serial changed, and the heatpump component needs a fix: https://github.com/geoffdavis/esphome-mitsubishiheatpump/issues/152

Compile error message

INFO ESPHome 2024.6.1
INFO Reading configuration /config/esphome/bedroom-mini-split.yaml...
WARNING GPIO2 is a strapping PIN and should only be used for I/O with care.
Attaching external pullup/down resistors to strapping pins can cause unexpected failures.
See https://esphome.io/guides/faq.html#why-am-i-getting-a-warning-about-strapping-pins
INFO Generating C++ source...
Traceback (most recent call last):
  File "/usr/local/bin/esphome", line 8, in <module>
    sys.exit(main())
             ^^^^^^
  File "/esphome/esphome/__main__.py", line 1079, in main
    return run_esphome(sys.argv)
           ^^^^^^^^^^^^^^^^^^^^^
  File "/esphome/esphome/__main__.py", line 1066, in run_esphome
    rc = POST_CONFIG_ACTIONS[args.command](args, config)
         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/esphome/esphome/__main__.py", line 484, in command_run
    exit_code = write_cpp(config)
                ^^^^^^^^^^^^^^^^^
  File "/esphome/esphome/__main__.py", line 193, in write_cpp
    generate_cpp_contents(config)
  File "/esphome/esphome/__main__.py", line 205, in generate_cpp_contents
    CORE.flush_tasks()
  File "/esphome/esphome/core/__init__.py", line 681, in flush_tasks
    self.event_loop.flush_tasks()
  File "/esphome/esphome/coroutine.py", line 246, in flush_tasks
    next(task.iterator)
  File "/esphome/esphome/__main__.py", line 185, in wrapped
    await coro(conf)
  File "/esphome/esphome/coroutine.py", line 80, in coro
    ret = yield from _flatten_generator(gen)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/esphome/esphome/coroutine.py", line 118, in _flatten_generator
    val = gen.send(to_send)
          ^^^^^^^^^^^^^^^^^
  File "/data/external_components/d980f6ff/components/mitsubishi_heatpump/climate.py", line 66, in to_code
    serial = HARDWARE_UART_TO_SERIAL[config[CONF_HARDWARE_UART]]
             ~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^
KeyError: 'UART2'