Deps: Bump @vitejs/plugin-legacy from 5.4.3 to 6.0.0

Bumps [@vitejs/plugin-legacy](https://github.com/vitejs/vite/tree/HEAD/packages/plugin-legacy) from 5.4.3 to 6.0.0.
- [Release notes](https://github.com/vitejs/vite/releases)
- [Changelog](https://github.com/vitejs/vite/blob/main/packages/plugin-legacy/CHANGELOG.md)
- [Commits](https://github.com/vitejs/vite/commits/v6.0.0/packages/plugin-legacy)

---
updated-dependencies:
- dependency-name: "@vitejs/plugin-legacy"
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

package.json

@@ -83,7 +83,7 @@
     "@types/react-dom": "^18.3.1",
     "@typescript-eslint/eslint-plugin": "^8.15.0",
     "@typescript-eslint/parser": "^8.15.0",
-    "@vitejs/plugin-legacy": "^5.4.3",
+    "@vitejs/plugin-legacy": "^6.0.0",
     "@vitejs/plugin-react": "^4.3.4",
     "@vitest/coverage-v8": "^2.1.8",
     "@vitest/ui": "^2.1.4",