fix: avoid inlineDynamicImports deprecated option warning when using Vite 8

[teemingc]

closes #15549

This PR avoids setting inlineDynamicImports when Rolldown/Vite 8 is used so that we don't get a deprecated option message when building the service worker. This is already fixed in the version-3 branch.

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Latest commit: af82b7d

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

This PR includes changesets to release 1 package

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@sveltejs/kit	Patch

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[vercel]

Service worker build incorrectly enables code splitting with Rolldown, breaking the single-file requirement for service workers.