Require local_only to be a boolean on webhook

[edenhaus]

Breaking change

The local_only argument on async_register for webhooks needs to be a boolean

Proposed change

Removed deprecation of the local_only argument in webhooks to be not a boolean

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
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• 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

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• This PR fixes or closes issue: fixes #
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[home-assistant]

Hey there @home-assistant/core, mind taking a look at this pull request as it has been labeled with an integration (webhook) you are listed as a code owner for? Thanks!

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[Copilot]

Pull request overview

This PR tightens the webhook registration API by enforcing that local_only must be a real boolean, removing the legacy None behavior and its associated deprecation path.

Changes:

• Change async_register(..., local_only=...) type contract from bool | None to bool and enforce it at runtime with a TypeError.
• Remove the local_only=None deprecation/warning behavior during webhook handling and treat local_only as a strict boolean.

[Copilot]

Pull request overview

Copilot reviewed 1 out of 1 changed files in this pull request and generated no new comments.