Change order of packages in docs workflow.

Author: TeresiaOlsson

.github/workflows/documentation.yml

@@ -46,10 +46,10 @@ jobs:
 
       - name: Install package
         run: |
-          python -m pip install '.[doc]'
           python -m pip install tango-pyaml
           python -m pip install pyaml-cs-oa[tango]
           python -m pip install pyaml-cs-oa[epics]
+          python -m pip install '.[doc]'
 
       - name: Build documentation
         run: make html