Fix songpal test_setup_failed test

[jbouwh]

Proposed change

Improve songpal test_setup_failed test. It now counts the number of warings in the test, but that can lead to false positives.

Fixes: FAILED tests/components/songpal/test_media_player.py::test_setup_failed - assert 3 == 2

Example logging when this gets wrong and logs 3 warings failing the test.

----------------------------- Captured stderr call ----------------------------- 
WARNING:asyncio:Executing <Task pending name='Task-53151' coro=<test_setup_failed() running at /home/runner/work/core/core/tests/components/songpal/test_media_player.py:102> wait_for=<Task pending name='setup component songpal' coro=<_async_setup_component() running at /home/runner/work/core/core/homeassistant/setup.py:168> cb=[set.remove(), Task.task_wakeup()] created at /home/runner/work/core/core/homeassistant/core.py:552> cb=[_run_until_complete_cb() at /opt/hostedtoolcache/Python/3.10.12/x64/lib/python3.10/asyncio/base_events.py:184] created at /opt/hostedtoolcache/Python/3.10.12/x64/lib/python3.10/asyncio/tasks.py:636> took 0.107 seconds 
INFO:homeassistant.loader:Loaded songpal from homeassistant.components.songpal 
INFO:homeassistant.setup:Setting up songpal 
INFO:homeassistant.setup:Setup of domain songpal took 0.0 seconds 
INFO:homeassistant.loader:Loaded media_player from homeassistant.components.media_player 
INFO:homeassistant.loader:Loaded http from homeassistant.components.http 
DEBUG:homeassistant.setup:Dependency media_player will wait for dependencies ['http'] 
INFO:homeassistant.setup:Setting up http 
DEBUG:tests.common:Writing data to http.auth: {'version': 1, 'minor_version': 1, 'key': 'http.auth', 'data': {'content_user': '127eb3dc55ba41608a71a4c45cceccb2'}} 
DEBUG:homeassistant.components.network.network:Adapters: [{'name': 'eth0', 'index': 0, 'enabled': True, 'auto': True, 'default': True, 'ipv4': [{'address': '10.10.10.10', 'network_prefix': 24}], 'ipv6': []}] 
INFO:homeassistant.setup:Setup of domain http took 0.0 seconds 
DEBUG:homeassistant.core:Bus:Handling <Event component_loaded[L]: component=http> 
INFO:homeassistant.setup:Setting up media_player 
INFO:homeassistant.setup:Setup of domain media_player took 0.0 seconds 
DEBUG:homeassistant.core:Bus:Handling <Event component_loaded[L]: component=media_player> 
DEBUG:homeassistant.helpers.translation:Cache miss for en: media_player 
DEBUG:homeassistant.helpers.translation:Cache miss for en: songpal 
INFO:homeassistant.components.media_player:Setting up media_player.songpal 
WARNING:homeassistant.components.songpal.media_player:[name(http://0.0.0.0:10000/sony)] Unable to connect 
DEBUG:homeassistant.components.songpal.media_player:Unable to get methods from songpal: Unable to do POST request: : None 
WARNING:homeassistant.components.media_player:Platform songpal not ready yet: Unable to do POST request: : None; Retrying in background in 30 seconds 
DEBUG:homeassistant.core:Bus:Handling <Event component_loaded[L]: component=songpal>

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:
• Link to documentation pull request:

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• The code change is tested and works locally.
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• Tests have been added to verify that the new code works.

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[home-assistant]

Hey there @rytilahti, @shenxn, mind taking a look at this pull request as it has been labeled with an integration (songpal) you are listed as a code owner for? Thanks!

Code owner commands

Code owners of songpal can trigger bot actions by commenting:

• @home-assistant close Closes the pull request.
• @home-assistant rename Awesome new title Renames the pull request.
• @home-assistant reopen Reopen the pull request.
• @home-assistant unassign songpal Removes the current integration label and assignees on the pull request, add the integration domain after the command.

[rytilahti]

LGTM, thanks @jbouwh!