chore(deps): bump unhead and @unhead/vue

Bumps [unhead](https://github.com/unjs/unhead/tree/HEAD/packages/unhead) and [@unhead/vue](https://github.com/unjs/unhead/tree/HEAD/packages/vue). These dependencies needed to be updated together.

Updates `unhead` from 2.1.12 to 2.1.13
- [Release notes](https://github.com/unjs/unhead/releases)
- [Commits](https://github.com/unjs/unhead/commits/v2.1.13/packages/unhead)

Updates `@unhead/vue` from 2.1.12 to 2.1.13
- [Release notes](https://github.com/unjs/unhead/releases)
- [Commits](https://github.com/unjs/unhead/commits/v2.1.13/packages/vue)

---
updated-dependencies:
- dependency-name: unhead
  dependency-version: 2.1.13
  dependency-type: indirect
- dependency-name: "@unhead/vue"
  dependency-version: 2.1.13
  dependency-type: indirect
...

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Author: dependabot[bot]