Fix error

Author: simonkurtz-MSFT

samples/inference-failover/create.ipynb

@@ -900,13 +900,15 @@
    "metadata": {},
    "outputs": [],
    "source": [
+    "import importlib\n",
     "# APIM Samples imports\n",
     "from console import print_ok, print_warning\n",
     "\n",
     "if 'gpt_5_1_backend_labels' not in locals():\n",
     "    print_warning('Please run the scenario chart cell first')\n",
     "    raise SystemExit(1)\n",
     "\n",
+    "inference_failover_helpers = importlib.reload(inference_failover_helpers)\n",
     "report_context = inference_failover_helpers.InferenceReportContext(\n",
     "    sample_folder=sample_folder,\n",
     "    apim_source_region=apim_source_region,\n",