fix(deps): update dependency next to v15

Author: renovate[bot]

package.json

@@ -2,7 +2,7 @@
   "name": "deployment-example-prisma-vercel",
   "dependencies": {
     "@prisma/client": "3.15.2",
-    "next": "13.5.7",
+    "next": "15.0.0",
     "react": "18.3.1",
     "react-dom": "18.3.1"
   },