Proposed change

Fix bug introduced due to #139008, when device closes the connection we push an update from aioshelly to notify listeners that the device is disconnected/unavailable, this causes an exception since we try to access data from the device:

Traceback (most recent call last):
  File "/usr/local/lib/python3.13/site-packages/aioshelly/rpc_device/wsrpc.py", line 391, in _rx_msgs
    self._on_notification(RPCSource.CLIENT, NOTIFY_WS_CLOSED, None)
    ~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  ...
  File "/usr/src/homeassistant/homeassistant/components/shelly/cover.py", line 229, in _update_callback
    if self.is_closing or self.is_opening:
       ^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/components/shelly/cover.py", line 198, in is_closing
    return cast(bool, self.status["state"] == "closing")
                      ^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/components/shelly/entity.py", line 433, in status
    return cast(dict, self.coordinator.device.status[self.key])
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.13/site-packages/aioshelly/rpc_device/device.py", line 558, in status
    raise NotInitialized
aioshelly.exceptions.NotInitialized

I reviewed other places and this is the only problematic case.

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New integration (thank you!)
• New feature (which adds functionality to an existing integration)
• Deprecation (breaking change to happen in the future)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Additional information

• This PR fixes or closes issue: fixes #
• This PR is related to issue:
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• Link to developer documentation pull request:
• Link to frontend pull request:

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