build(deps-dev): bump vite in /build/frontend-legacy

Bumps [vite](https://github.com/vitejs/vite/tree/HEAD/packages/vite) from 7.1.8 to 7.1.12.
- [Release notes](https://github.com/vitejs/vite/releases)
- [Changelog](https://github.com/vitejs/vite/blob/v7.1.12/packages/vite/CHANGELOG.md)
- [Commits](https://github.com/vitejs/vite/commits/v7.1.12/packages/vite)

---
updated-dependencies:
- dependency-name: vite
  dependency-version: 7.1.12
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

build/frontend-legacy/package-lock.json

@@ -133,7 +133,7 @@
     "sass": "^1.93.2",
     "sinon": "<= 5.0.7",
     "typescript": "^5.9.2",
-    "vite": "^7.1.8",
+    "vite": "^7.1.12",
     "vitest": "^3.2.4",
     "vue-loader": "^15.11.1",
     "vue-template-compiler": "^2.7.16",