fix(deps): update dependency @unhead/vue to v1.9.9

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@unhead/vue (source)	1.9.8 -> 1.9.9

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Release Notes

unjs/unhead (@​unhead/vue)

### [`v1.9.9`](https://togithub.com/unjs/unhead/releases/tag/v1.9.9) [Compare Source](https://togithub.com/unjs/unhead/compare/v1.9.8...v1.9.9) #####    🐞 Bug Fixes - **scripts**: Forward only defined API props  -  by [@​harlan-zw](https://togithub.com/harlan-zw) [(3f429)](https://togithub.com/unjs/unhead/commit/3f4298e7) #####     [View changes on GitHub](https://togithub.com/unjs/unhead/compare/v1.9.8...v1.9.9)

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