Added missing dependencies to workflow

.github/workflows/deploy.yml

@@ -23,6 +23,12 @@ jobs:
       run: |
         python -m pip install --upgrade pip
         pip install sphinx
+        pip install sphinx-book-theme
+        pip install sphinx_toolbox.collapse
+        pip install sphinxcontrib.youtube
+        pip install sphinx_new_tab_link
+        pip install sphinxcontrib.email
+
 
     - name: Build documentation
       run: |