update to pyhton-3.11.6 - using dataclasses and fix "unavailable"-sta…

[marek-veber]

• need of dataclasses in python 3.11
• fixing the non-numeric state=unavailable in place of the number value

[marek-veber]

This is partially duplicity to https://github.com/PlusPlus-ua/ha_mobilealerts/pull/24