Forwarding setup to config entry platforms

[elcajon]

Calling hass.config_entries.async_forward_entry_setup is deprecated and will be removed in Home Assistant 2025.6. Instead, await hass.config_entries.async_forward_entry_setups as it can load multiple platforms at once and is more efficient since it does not require a separate import executor job for each platform.

https://developers.home-assistant.io/blog/2024/06/12/async_forward_entry_setups/

closes #131

[FL550]

Hi, thank you very much for your PR!

I am quite busy for the moment, so I have no time to test your changes. I'll will look into this as soon as possible. This will probably be next week.

Best regards

[FL550]

Thanks for your feedback!