⬆️ upgrade next to v15

Author: renovate[bot]

docs/package.json

@@ -11,7 +11,7 @@
     "@vercel/og": "^0.6.2",
     "@vercel/speed-insights": "^1.0.12",
     "kitchn": "workspace:*",
-    "next": "^14.0.4",
+    "next": "^15.0.0",
     "next-sitemap": "^4.2.3",
     "next-themes": "^0.4.0",
     "nextra": "^2.13.2",

packages/kitchn/package.json

@@ -75,7 +75,7 @@
   "devDependencies": {
     "@types/react": "^18.2.67",
     "@types/react-dom": "^18.2.22",
-    "next": "^14.0.0",
+    "next": "^15.0.0",
     "react": "^18.2.0",
     "react-dom": "^18.2.0",
     "react-native": "^0.76.0",