Convert template light to use async_track_template_result

[bdraco]

Requires #39042

Proposed change

Convert template light to use async_track_template_result

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

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