docs: fix pprint import (#4869)

docs/docs/tutorials/rag/langgraph_adaptive_rag.ipynb

@@ -516,11 +516,13 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 12,
+   "execution_count": null,
    "id": "b76b5ec3-0720-443d-85b1-c0e79659ca0a",
    "metadata": {},
    "outputs": [],
    "source": [
+    "from pprint import pprint\n",
+    "\n",
     "from langchain.schema import Document\n",
     "\n",
     "\n",
@@ -796,7 +798,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 14,
+   "execution_count": null,
    "id": "29acc541-d726-4b75-84d1-a215845fe88a",
    "metadata": {},
    "outputs": [
@@ -823,8 +825,6 @@
     }
    ],
    "source": [
-    "from pprint import pprint\n",
-    "\n",
     "# Run\n",
     "inputs = {\n",
     "    \"question\": \"What player at the Bears expected to draft first in the 2024 NFL draft?\"\n",