fix(optimizer): fix optimizeDeps.include glob syntax for ./* exports

[hi-ogawa]

Description

• closes Globbing in optimizeDeps.includes does not seem to work #16174

There is a small inconsistency in fast-glob's output, which was making some regex to miss when ./* exports is used and this case was not covered by the current test case @vitejs/test-dep-optimize-exports-with-glob. I made a quick fix to just cover this special case.

I wrote in the comment, but the inconsistency can be replayed like this:

$ cd packages/vite
$ node -p 'require("fast-glob").sync("./*")'
[
  'CHANGELOG.md', // <-- not './CHANGELOG.md'
  'LICENSE.md',
  ...
]
$ node -p 'require("fast-glob").sync("./types/*")'
[
  './types/customEvent.d.ts',
  './types/hmrPayload.d.ts',
  ...
]

I quickly skimmed through fast-glob side, but I didn't find any special call out about this behavior. Vite side fix seems simple enough, so I went with this, but please let me know if you want to check with fast-glob further.

Additional context

---

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, especially the Pull Request Guidelines.
• 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).
• Update the corresponding documentation if needed.
• Ideally, include relevant tests that fail without this PR but pass with it.

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[bluwy]

Makes sense to me. Thanks!