fix: fix external behavior with deps.optimizer

[hi-ogawa]

Description

Resolves #8995

When optimizer is enabled for Vite SSR, Vite resolves non-optimized node_modules path with ?v=xxx. This confuses Vitest's shouldExternalize logic since you cannot readFile(id) with query parameters, which then causes all node_modules to be inlined.

Not exactly sure where and how much we should strip off queries. For this PR, it strips during isValidNodeImport check only and keep queries for actual Node native import if it externalized as Node support that.

Test

• Verified the repro https://stackblitz.com/edit/github-ztfi4hfc?file=package.json

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commit: 43d0e22