Update nextjs monorepo to v15.4.4

Author: renovate[bot]

apps/docs/package.json

@@ -38,15 +38,15 @@
     "@mui/x-date-pickers-pro": "7.28.3",
     "classix": "2.2.2",
     "comment-parser": "1.4.1",
-    "next": "15.3.0",
+    "next": "15.4.4",
     "nextra": "4.3.0-alpha.18",
     "nextra-theme-docs": "4.2.17",
     "react": "19.1.0",
     "react-dom": "19.1.0",
     "tailwindcss-animate": "1.0.7"
   },
   "devDependencies": {
-    "@next/eslint-plugin-next": "15.3.0",
+    "@next/eslint-plugin-next": "15.4.4",
     "@tailwindcss/postcss": "4.1.3",
     "@types/node": "22.14.1",
     "@types/react": "19.1.0",