fix(deps): update nextjs monorepo to v15

Author: renovate[bot]

package.json

@@ -23,13 +23,13 @@
   "dependencies": {
     "lodash": "4.17.21",
     "moment": "2.30.1",
-    "next": "14.2.20",
+    "next": "15.1.1",
     "react": "18.3.1",
     "react-dom": "18.3.1",
     "sharp": "0.33.5"
   },
   "devDependencies": {
-    "@next/eslint-plugin-next": "14.2.20",
+    "@next/eslint-plugin-next": "15.1.1",
     "@trivago/prettier-plugin-sort-imports": "4.3.0",
     "@types/lodash": "4.17.13",
     "@types/node": "20.17.9",