Fix saptune domain clause

[arbulu89]

Description

Stupid mistake in the clause...
It was causing an error in a pretty standard scenario, as it was passing the saptune status, instead of the expected host domain state:

09:08:39.533 [error] ** (FunctionClauseError) no function clause matching in Trento.Domain.Host.maybe_emit_host_saptune_health_changed_event/2
    (trento 2.1.0-git.dev273.1698996215.8d6c8aa7) lib/trento/domain/host/host.ex:686: Trento.Domain.Host.maybe_emit_host_saptune_health_changed_event(%Trento.Domain.SaptuneStatus{applied_notes: [], applied_solution: nil, configured_version: nil, enabled_notes: [], enabled_solution: nil, package_version: "3.0.2", services: [], staging: nil, tuning_state: nil}, true)

How was this tested?

New UT added. The unique lines that were not tested causes the error, murphy's law XD