docs: restore notebook metadata to match main

Author: anevolbap

docs/source/knowledgebase/structural_causal_models.ipynb

@@ -5142,7 +5142,7 @@
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3 (ipykernel)",
+   "display_name": "CausalPy",
    "language": "python",
    "name": "python3"
   },
@@ -5156,9 +5156,9 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.13.12"
+   "version": "3.13.11"
   }
  },
  "nbformat": 4,
- "nbformat_minor": 4
+ "nbformat_minor": 2
 }