Bump svelte, svelte-check and svelte-preprocess (#1182)

Bumps [svelte](https://github.com/sveltejs/svelte/tree/HEAD/packages/svelte) to 4.2.19 and updates ancestor dependencies [svelte](https://github.com/sveltejs/svelte/tree/HEAD/packages/svelte), [svelte-check](https://github.com/sveltejs/language-tools) and [svelte-preprocess](https://github.com/sveltejs/svelte-preprocess). These dependencies need to be updated together.


Updates `svelte` from 3.57.0 to 4.2.19
- [Release notes](https://github.com/sveltejs/svelte/releases)
- [Changelog](https://github.com/sveltejs/svelte/blob/svelte@4.2.19/packages/svelte/CHANGELOG.md)
- [Commits](https://github.com/sveltejs/svelte/commits/svelte@4.2.19/packages/svelte)

Updates `svelte-check` from 3.1.4 to 3.8.6
- [Release notes](https://github.com/sveltejs/language-tools/releases)
- [Commits](sveltejs/language-tools@svelte-check-3.1.4...svelte-check-3.8.6)

Updates `svelte-preprocess` from 5.0.3 to 5.1.4
- [Changelog](https://github.com/sveltejs/svelte-preprocess/blob/main/CHANGELOG.md)
- [Commits](sveltejs/svelte-preprocess@v5.0.3...v5.1.4)

---
updated-dependencies:
- dependency-name: svelte
  dependency-type: indirect
- dependency-name: svelte-check
  dependency-type: direct:development
- dependency-name: svelte-preprocess
  dependency-type: direct:development
...

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