fix(optimizer): don't externalize transitive dep package name with asset extension

[hi-ogawa]

Description

• closes The object is created with the old class name, but the instanceof check is performed with the renamed class name #18036

#16242 handled the case of require call, but it looks like it should cover import as well. This was suggested in #16242 (comment) and probably this is indeed necessary to handle external package name like import "some-package.pdf".

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[patak-dev]

/ecosystem-ci run

[vite-ecosystem-ci]

📝 Ran ecosystem CI on 10aef19: Open

suite	result	latest scheduled
analogjs	❌ failure	❌ failure
histoire	❌ failure	❌ failure
remix	❌ failure	❌ failure
sveltekit	❌ failure	✅ success
vike	❌ failure	❌ failure

✅ astro, ladle, laravel, marko, nuxt, previewjs, quasar, qwik, rakkas, redwoodjs, storybook, unocss, vite-environment-examples, vite-plugin-pwa, vite-plugin-react, vite-plugin-react-swc, vite-plugin-svelte, vite-plugin-vue, vite-setup-catalogue, vitepress, vitest, vuepress

[hi-ogawa]

/ecosystem-ci run sveltekit

[vite-ecosystem-ci]

📝 Ran ecosystem CI on b4910a9: Open

✅ sveltekit

[hi-ogawa]

I reran sveltekit and CI passed, so it was probably a flake.