Update Next version to 15.5.7

Author: juaristi22

microimputation-dashboard/package.json

@@ -11,7 +11,7 @@
   "dependencies": {
     "jszip": "^3.10.1",
     "lucide-react": "^0.546.0",
-    "next": "15.5.6",
+    "next": "15.5.7",
     "papaparse": "^5.5.3",
     "react": "19.1.0",
     "react-dom": "19.1.0",