Update ci.yml

Author: EduardoCristo

.github/workflows/ci.yml

@@ -30,6 +30,5 @@ jobs:
           restore-keys: |
             mkdocs-material-
       
-      - run: pip install mkdocs-material
-      
+      - run: pip install mkdocs mkdocs-material mkdocstrings
       - run: mkdocs gh-deploy --force