Should be extra

Author: finsberg

.github/workflows/build_docs.yml

@@ -28,7 +28,7 @@ jobs:
         uses: astral-sh/setup-uv@v6
 
       - name: Install the project
-        run: uv sync --extras docs
+        run: uv sync --extra docs
 
       - name: Build docs
         run: uv run jupyter book build .