chore: align changesets setup with svelte core

[benmccann]

sveltejs/svelte calls changeset version. I'm not sure why #9969 omitted that

[changeset-bot]

⚠️ No Changeset found

Latest commit: db18fc6

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

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