fixed install using groups

Author: zerothi

.github/workflows/documentation_ghpages.yaml

@@ -71,7 +71,7 @@ jobs:
           SKBUILD_CMAKE_BUILD_TYPE: Debug
         run: |
           python -m pip install --progress-bar=off --upgrade pip
-          python -m pip install --progress-bar=off .[analysis,viz,docs]
+          python -m pip install --progress-bar=off .[analysis,viz] --group docs
           # So since kaleido does not install chrome, we have to do it
           # This is only necessary when it works, otherwise, skip it!
           kaleido_get_chrome || true