Update nextjs monorepo to ^15.3.1

Author: renovate[bot]

package-lock.json

@@ -33,7 +33,7 @@
     "framer-motion": "12.7.4",
     "graphql": "^16.10.0",
     "lodash": "^4.17.21",
-    "next": "15.3.0",
+    "next": "15.3.1",
     "nprogress": "^0.2.0",
     "postcss": "^8.5.3",
     "react": "18.3.1",
@@ -54,7 +54,7 @@
     "@typescript-eslint/eslint-plugin": "^8.30.1",
     "@typescript-eslint/parser": "^8.30.1",
     "babel-plugin-styled-components": "^2.1.4",
-    "eslint-config-next": "^15.3.0",
+    "eslint-config-next": "^15.3.1",
     "postcss-preset-env": "^10.1.5",
     "prettier": "^3.5.3",
     "tailwindcss": "^3.4.17",