Update nextjs monorepo to v15.5.14

Author: renovate[bot]

package.json

@@ -26,7 +26,7 @@
     "graphql": "^16.10.0",
     "ky": "^1.8.1",
     "libsql": "^0.5.5",
-    "next": "15.3.0",
+    "next": "15.5.14",
     "payload": "^3.34.0",
     "payload-oapi": "0.2.0",
     "react": "19.1.0",
@@ -47,7 +47,7 @@
     "@types/react": "19.1.2",
     "@types/react-dom": "19.1.2",
     "eslint": "^9.24.0",
-    "eslint-config-next": "15.3.0",
+    "eslint-config-next": "15.5.14",
     "eslint-plugin-react": "^7.37.5",
     "eslint-plugin-react-hooks": "^5.2.0",
     "prettier": "^3.5.3",