public files map isn't updated on file add/unlink in windows

[jmlee2k]

Describe the bug

In Vite 5.0.6, a map of the public files was implemented for performance (#15195).
The map is supposed to be updated when files are added or deleted, but this doesn't happen on windows.

I'll be submitting a PR to fix this shortly.

Reproduction

https://github.com/jmlee2k/vite-publicfile-bug-reproduction

Steps to reproduce

NOTE: due to the nature of the bug, this can only be reproduced in windows (hence my including of a bare-bones repo instead of using stackblitz).

• clone repo
• run npm i
• run npm run dev

The index has an img tag with /vite.svg as the src. Initially, the image will be broken, as the file in /public is named vite2.svg. When renaming the file to vite.svg and reloading the page, we would expect the image to show, but it doesn't. The same thing happens if the file isn't there at all, and is moved into the public dir after starting vite.

System Info

System:
    OS: Windows 11 10.0.22621
    CPU: (12) x64 Intel(R) Core(TM) i7-8750H CPU @ 2.20GHz
    Memory: 4.99 GB / 31.73 GB
  Binaries:
    Node: 18.16.0 - C:\Program Files\nodejs-lts\node.EXE
    npm: 9.5.1 - C:\Program Files\nodejs-lts\npm.CMD
    pnpm: 8.10.5 - ~\AppData\Local\pnpm\pnpm.EXE
  Browsers:
    Chrome: 120.0.6099.71
    Edge: Chromium (120.0.2210.61)
    Internet Explorer: 11.0.22621.1
  npmPackages:
    vite: ^5.0.6 => 5.0.6

Used Package Manager

npm

Logs

No response

Validations

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