feat: upgrade to svelte-check v3

[dummdidumm]

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[changeset-bot]

🦋 Changeset detected

Latest commit: 29191f5

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
create-svelte	Minor

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[Conduitry]

I think this sort of change to create-svelte should be at least a minor, not patch.

[dummdidumm]

my bad, meant to make it a minor, thanks for catching that