add ldap dependency

Author: dorianim

.github/workflows/build-and-publish-documentation.yml

@@ -17,7 +17,7 @@ jobs:
 
       - name: Setup Sphinx
         run: |
-          apt update && apt install -y python3-pip build-essential
+          apt update && apt install -y python3-pip python3-ldap build-essential
           pip install sphinx_rtd_theme
 
       - name: Build