Try to fix RTD build by using pip to install dependency-groups

Author: tleonhardt

.readthedocs.yaml

@@ -20,11 +20,7 @@ build:
   tools:
     python: "3.13"
   jobs:
-    create_environment:
-      - asdf plugin add uv
-      - asdf install uv latest
-      - asdf global uv latest
-      - uv venv
-    build:
-      html:
-        - NO_COLOR=1 uv run mkdocs build --strict --site-dir $READTHEDOCS_OUTPUT/html
+    install:
+      - pip install .
+      - pip install dependency-groups
+      - pip-install-dependency-groups docs