fix(worker): force rollup to build worker module under watch mode

[fi3ework]

fix #8172
fix #11786
close superseds #8700

In build watch mode, the transform hook will not be called after the load hook of vite:worker plugin except in the very first build. So use shouldtransformcachedmodule hook to indicate re-call transform hook in watch build mode.

Additional context

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What is the purpose of this pull request?

• Bug fix
• New Feature
• Documentation update
• Other

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[sapphi-red]

Thanks!

This doesn't seem to work when editing playground/worker/sub-worker.js. But I think that can be tackled in a different PR.