Use dataclass properties in bosch_shc discovery

[epenet]

Proposed change

Use dataclass properties in bosch_shc discovery.

Linked to #60540

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[probot-home-assistant]

Hey there @tschamm, mind taking a look at this pull request as it has been labeled with an integration (bosch_shc) you are listed as a code owner for? Thanks!
_{^{(message by CodeOwnersMention)}}

[epenet]

@bdraco can the host in zeroconf be a list?
Is it a mistake in my zeroconf type hint or is this a mistake in this integration?

[bdraco]

AsyncServiceInfo returns a list, and we pick the address they hopefully want here:
https://github.com/home-assistant/core/blob/dev/homeassistant/components/zeroconf/__init__.py#L528

[epenet]

Thanks for the confirmation.
I have dropped multi-host handling from async_step_zeroconf and from the corresponding tests

[epenet]

Note: this is required for #60561

[frenck]

Nice! 👍