Fix syntax in SageMaker endpoint setup notebook

Author: dgallitelli

workshops/diy-agents-with-sagemaker-and-bedrock/0-setup/2-setup-sagemaker-endpoint.ipynb

@@ -58,7 +58,7 @@
     "        \"OPTION_ENABLE_AUTO_TOOL_CHOICE\": \"true\",\n",
     "        \"OPTION_TOOL_CALL_PARSER\": \"hermes\",\n",
     "        \"OPTION_ENABLE_REASONING\": \"true\",\n",
-    "        \"OPTION_REASONING_PARSER\": \"qwen3\",\n",
+    "        \"OPTION_REASONING_PARSER\": \"qwen3\"
     "    }\n",
     ")\n",
     "model.deploy(\n",