chore: update demo to the latest cookiecutter-robust-python

Author: 56kyle

.cookiecutter.json

@@ -1,5 +1,5 @@
 {
-  "_commit": "7ade588e584688544482379ce3b50740f61702c3",
+  "_commit": "fb9bab58edae3babd127219b4613c4cbf76e1fd0",
   "_template": "C:\\Users\\56kyl\\source\\repos\\cookiecutter-robust-python",
   "add_rust_extension": false,
   "author": "Kyle Oliver",

.cruft.json

@@ -1,6 +1,6 @@
 {
   "template": "C:\\Users\\56kyl\\source\\repos\\cookiecutter-robust-python",
-  "commit": "7ade588e584688544482379ce3b50740f61702c3",
+  "commit": "fb9bab58edae3babd127219b4613c4cbf76e1fd0",
   "checkout": null,
   "context": {
     "cookiecutter": {
@@ -18,7 +18,7 @@
       "license": "MIT",
       "development_status": "Development Status :: 1 - Planning",
       "_template": "C:\\Users\\56kyl\\source\\repos\\cookiecutter-robust-python",
-      "_commit": "7ade588e584688544482379ce3b50740f61702c3"
+      "_commit": "fb9bab58edae3babd127219b4613c4cbf76e1fd0"
     }
   },
   "directory": null

.readthedocs.yml

@@ -4,5 +4,14 @@ build:
   os: ubuntu-22.04
   tools:
     python: "3.13"
+
+python:
+  install:
+    # This is required for ReadTheDocs to consider it a Python project and install dependencies.
+    - method: pip
+      path: .
+      extra_requirements:
+        - docs
+
 sphinx:
   configuration: docs/conf.py