fix: support dynamic path with alias in new URL() (fix #10597)

[hershelh]

Description

If the path in new URL() includes both variables and alias, Vite will not resolve the alias and cause an error during runtime.

This PR resolves the alias appear in new URL() in assetImportMetaUrlPlugin.

fixes #10597

What is the purpose of this pull request?

• Bug fix
• New Feature
• Documentation update
• Other

Before submitting the PR, please make sure you do the following

• Read the Contributing Guidelines.
• Read the Pull Request Guidelines and follow the Commit Convention.
• Check that there isn't already a PR that solves the problem the same way to avoid creating a duplicate.
• Provide a description in this PR that addresses what the PR is solving, or reference the issue that it solves (e.g. fixes #123).
• Ideally, include relevant tests that fail without this PR but pass with it.

[chaxus]

I've tested a couple of times and it seems that the failed test will pass if run with the command pnpm run test-serve css-dynamic-import in CI but if run with pnpm run test-serve, it sometimes fails. I'm not sure if this is a ci-only case since I'm not able to test it locally.

I'm also confused about the purpose of the failed test since the related PR (#9970) that added it was only applied in build phase. So I removed the change of that PR and ran the test code again. It turned out that the test passed, which means the test code below is useless for the change of the PR:

test.runIf(isServe)(
  `doesn't duplicate dynamically imported css files when served with ${label} base`,
  async () => {
    await withServe(base, async () => {
      await page.waitForSelector('.loaded', { state: 'attached' })

      expect(await getColor('.css-dynamic-import')).toBe('green')
      // in serve there is no preloading
      expect(await getLinks()).toEqual([
        {
          pathname: '/dynamic.css',
          rel: 'preload',
          as: 'style'
        }
      ])
    })
  }
)

Maybe you could take a look. @patak-dev @bluwy

pnpm run test

I also encountered this problem, but I personally feel that this test is not stable enough, try several times may make more mistakes, may pass all...

[malikba]

aliasResolver

Suggested change

	let aliaResolver: ResolveFn
	let aliasResolver: ResolveFn

[malikba]

Suggested change

	aliaResolver ??= config.createResolver()
	const resolvedUrl = await aliaResolver(
	aliasResolver ??= config.createResolver()
	const resolvedUrl = await aliasResolver(

[malikba]

why are you making this assignment?