fix: frontend/package.json & frontend/package-lock.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-VITE-12558116

Author: snyk-bot

frontend/package-lock.json

@@ -28,7 +28,7 @@
         "react-router-dom": "^7.5.3",
         "styled-components": "^6.1.17",
         "ts-custom-error": "^3.3.1",
-        "vite": "^6.3.4",
+        "vite": "^6.3.6",
         "vite-plugin-svgr": "^4.3.0"
     },
     "scripts": {