Bump svelte-check from 2.7.2 to 2.8.1 (#517)

Bumps [svelte-check](https://github.com/sveltejs/language-tools) from 2.7.2 to 2.8.1.
- [Release notes](https://github.com/sveltejs/language-tools/releases)
- [Commits](sveltejs/language-tools@svelte-check-2.7.2...svelte-check-2.8.1)

---
updated-dependencies:
- dependency-name: svelte-check
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>