Bump plugwise to v1.6.3

[bouwew]

Proposed change

Link to the plugwise backend library v1.6.3
This update attempts to solve issue #132479, please don't close the issue until the issuer confirms that the fix works.

https://github.com/plugwise/python-plugwise/releases/tag/v1.6.3

plugwise/python-plugwise@v1.6.2...v1.6.3

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: Plugwise: heating setpoint cannot be changed when in cooling mode #132479
• Link to documentation pull request:

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[home-assistant]

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

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[bouwew]

Also, please include this PR in the 2024.12.2 release.

[bouwew]

The single test-fail is not related to the contents of this PR.