chore(integration): bump hisense-unified-ac for entity icons (icons.json) (#95)

Advances the submodule to the merged icons.json work (AndrewDemsDS/hisense-unified-ac#6):
18 per-bit fault sensors get distinct category icons, the Faults aggregate + Bus
link get state-based icons, and the diagnostic sensors move to icons.json. Entity
names unchanged (icons resolve by translation_key; names stay on _attr_name).
Integration 1.1.1 -> 1.1.2.

Assisted-by: AI

Author: AndrewDemsDS