chore(deps): update nextjs monorepo to v15

Author: renovate[bot]

packages/launchpad/test-envs/bun-package-manager-with-deps/package.json

@@ -12,15 +12,15 @@
     "test": "bun test"
   },
   "dependencies": {
-    "next": "^14.0.0",
+    "next": "^15.5.0",
     "react": "^18.0.0",
     "react-dom": "^18.0.0"
   },
   "devDependencies": {
     "@types/node": "^20.0.0",
     "@types/react": "^18.0.0",
     "eslint": "^8.0.0",
-    "eslint-config-next": "^14.0.0",
+    "eslint-config-next": "^15.5.0",
     "prettier": "^3.0.0",
     "typescript": "^5.0.0"
   }