chore: bump svelte

[Rich-Harris]

This bumps all the svelte devDependencies to the latest version

[changeset-bot]

⚠️ No Changeset found

Latest commit: 185a968

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.

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