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

[ihch]

Description

Fix: #14435

In the same way as #11919, change to use shouldTransformCachedModule to re-transform workerImportMetaUrl when in build watch mode.

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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[bluwy]

Since this function isn't using any variables in workerImportMetaUrlPlugin, I think we can move this out and above the workerImportMetaUrlPlugin plugin as a normal function isIncludeWorkerImportMetaUrl(code: string).

[bluwy]

Thanks!