Update twentemilieu to 0.6.1

[frenck]

Proposed change

Updates twentemilieu to 0.6.1
Release notes: https://github.com/frenck/python-twentemilieu/releases/tag/v0.6.1

Fixes #71339

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)
• 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 Address unknown Twente milieu #71339
• This PR is related to issue:
• Link to documentation pull request:

Checklist

• The code change is tested and works locally.
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