Use only IPv4 for zeroconf in bluesound integration

[LouisChrist]

Proposed change

Ignore IPv6 addresses from zeroconf.

It seems that the devices got partial IPv6 support in a firmware update, but the API is only listening on the IPv4 address.

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: Bluesound.join and Bluesound.unjoin no longer work as of 2025.3.1 and BluOS 4.8.21. #140144
• Link to documentation pull request:
• Link to developer documentation pull request:
• Link to frontend pull request:

Checklist

• 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 @thrawnarn, mind taking a look at this pull request as it has been labeled with an integration (bluesound) you are listed as a code owner for? Thanks!

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[frenck]

I've marked this PR a draft, as changes are requested that need to be processed.
Please un-draft it once it is ready for review again by clicking the "Ready for review" button.

Thanks! 👍

../Frenck

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[bdraco]

Change looks good. Thanks. It needs a test before we can merge.

[bdraco]

Thanks @LouisChrist

[frenck]

Thanks, @LouisChrist 👍

../Frenck