weatherkit: use stale data for up to an hour if updates fail

[tjhorner]

Proposed change

This PR introduces a change to the WeatherKit integration to use stale data for up to an hour if updates fail.

The WeatherKit API can be very unreliable in unpredictable ways at times (see #124052), and since weather data is not incredibly time-sensitive, it's acceptable to use the most recent data for up to an hour. If failures still occur after an hour, the entity will become unavailable.

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: Apple WeatherKit is timing out #124052
• Link to documentation pull request:

Checklist

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