build(deps-dev): bump vite from 6.0.7 to 6.0.9 in /webapp

Bumps [vite](https://github.com/vitejs/vite/tree/HEAD/packages/vite) from 6.0.7 to 6.0.9.
- [Release notes](https://github.com/vitejs/vite/releases)
- [Changelog](https://github.com/vitejs/vite/blob/main/packages/vite/CHANGELOG.md)
- [Commits](https://github.com/vitejs/vite/commits/v6.0.9/packages/vite)

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

Signed-off-by: dependabot[bot] <support@github.com>

webapp/package.json

@@ -42,7 +42,7 @@
     "sass": "=1.77.6",
     "terser": "^5.37.0",
     "typescript": "~5.6.3",
-    "vite": "^6.0.7",
+    "vite": "^6.0.9",
     "vite-plugin-compression": "^0.5.1",
     "vite-plugin-css-injected-by-js": "^3.5.2",
     "vue-tsc": "^2.2.0"