ci: fix notebook runner & VCR cassette recorder (#1849)

Co-authored-by: vbarda <vadym@langchain.dev>

docs/docs/tutorials/plan-and-execute/plan-and-execute.ipynb

@@ -130,7 +130,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 5,
+   "execution_count": 7,
    "id": "72d233ca-1dbf-4b43-b680-b3bf39e3691f",
    "metadata": {},
    "outputs": [
@@ -144,7 +144,7 @@
       "\n",
       "=============================\u001b[1m Messages Placeholder \u001b[0m=============================\n",
       "\n",
-      "\u001b[33;1m\u001b[1;3m{{messages}}\u001b[0m\n"
+      "\u001b[33;1m\u001b[1;3m{messages}\u001b[0m\n"
      ]
     }
    ],
@@ -155,7 +155,7 @@
     "from langgraph.prebuilt import create_react_agent\n",
     "\n",
     "# Get the prompt to use - you can modify this!\n",
-    "prompt = hub.pull(\"wfh/react-agent-executor\")\n",
+    "prompt = hub.pull(\"ih/ih-react-agent-executor\")\n",
     "prompt.pretty_print()\n",
     "\n",
     "# Choose the LLM that will drive the agent\n",