Fix blocking call in cync

[epenet]

Proposed change

Fixes #156762

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
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• Deprecation (breaking change to happen in the future)
• Breaking change (fix/feature causing existing functionality to break)
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Additional information

• This PR fixes or closes issue: fixes blocking call to load_default_certs #156762
• This PR is related to issue:
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[home-assistant]

Hey there @Kinachi249, mind taking a look at this pull request as it has been labeled with an integration (cync) you are listed as a code owner for? Thanks!

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[Copilot]

Pull Request Overview

This PR fixes a blocking call issue in the Cync integration by passing an SSL context to the Cync.create() method. The fix prevents the pycync library from creating its own SSL context (which involves blocking operations) by providing a pre-configured, cached context from Home Assistant's utility functions.

Key changes:

• Import get_default_context from homeassistant.util.ssl
• Create and pass ssl_context parameter to Cync.create() to avoid blocking SSL context creation in the library