minor #2977 [Vue] Update dev dependency `@vitejs/plugin-vue` (neothone)

This PR was merged into the 2.x branch.

Discussion
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[Vue] Update dev dependency ``@vitejs`/plugin-vue`

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| Docs?         | no
| Issues        | no
| License       | MIT

esbuild 0.21.5 require by vite 5.4.19, require by plugin-vue 4.6.2 contains security vulnerabilities

It's necessary to upgrade to esbuild to 0.25.0+, so plugin-vue must be in 5.1.5+ in order to have vite 6+ which is the first version that require esbuild 0.25.0+

It's a recurring dependabot alerts for me, example : https://github.com/fastfony/fastfony/security/dependabot/1

<img width="1246" height="722" alt="Capture d’écran 2025-08-06 à 00 03 48" src="https://github.com/user-attachments/assets/3253530c-0dea-4eef-beda-96f1c6e5b437" />

I have tested this upgrade on Fastfony with a fork of ux-vue repo and seems to no BC appears.

Commits
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9457c8e Update plugin-vue required version in package.json

Author: Kocal

pnpm-lock.yaml

@@ -49,7 +49,7 @@
         "@testing-library/jest-dom": "^6.6.3",
         "@testing-library/user-event": "^14.6.1",
         "@types/webpack-env": "^1.16",
-        "@vitejs/plugin-vue": "^4.4.0",
+        "@vitejs/plugin-vue": "^6.0.0",
         "jsdom": "^26.1.0",
         "tslib": "^2.8.1",
         "tsx": "^4.20.3",