* Add additional tests for Matter update entity
Extend test coverage for Matter update entity. This includes tests for
error handling and state store/restore.
* Improve test descriptions
* Add restore test only (using mock_restore_cache_with_extra_data)
* Fix test_update_state_save_and_restore test
* Use homeassistant constants
* Use update component constants
* Use freezer to skip time for device update check
We check device updates every 12h currently. Use the freezer to skip
time.
Still add a test which uses the service call to make sure this works
too.
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