Bump yalexs to 8.4.0

[bdraco]

Proposed change

small fix to not show the yale global brand in
the config flow since it requires oauth and will
only work with the upcoming yale integration

changelog: bdraco/yalexs@v8.3.3...v8.4.0

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

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• This PR fixes or closes issue: fixes #
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[bdraco]

thanks