Deprecated Constants will stop working with 2025.1

[chkuendig]

This integration currently throws a warning at launch that has to be addressed eventually:

homeassistant  | 2024-08-29 21:35:51.780 WARNING (ImportExecutor_0) [homeassistant.const] TEMP_CELSIUS was used from hp_ilo, this is a deprecated constant which will be removed in HA Core 2025.1. Use UnitOfTemperature.CELSIUS instead, please report it to the author of the 'hp_ilo' custom integration
homeassistant  | 2024-08-29 21:35:51.781 WARNING (ImportExecutor_0) [homeassistant.const] TIME_SECONDS was used from hp_ilo, this is a deprecated constant which will be removed in HA Core 2025.1. Use UnitOfTime.SECONDS instead, please report it to the author of the 'hp_ilo' custom integration