Fix Lutron Serena Tilt Only Wood Blinds set tilt function

[wujiaqi]

Proposed change

Previous PR fix #113791 accidentally removed the await keyword to call the set tilt function. This broke set tilt position. This change adds this back.

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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[home-assistant]

Hey there @swails, @bdraco, @danaues, @eclair4151, mind taking a look at this pull request as it has been labeled with an integration (lutron_caseta) you are listed as a code owner for? Thanks!

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[bdraco]

Thanks @wujiaqi