workflows: Fixed workflow to build documentation

.github/workflows/builddevdoc.yml

@@ -1,12 +1,11 @@
-name: "Build doc from develop"
+name: "Build doc from develop/plugins"
 #on: [workflow_dispatch, push]
 on:
   workflow_dispatch:
   push:
     branches:
       - 'develop'
-env:
-  DEP_PATH: smarthomeng/requirements/all.txt
+
 jobs:
   build:
     runs-on: ubuntu-20.04 #latest
@@ -46,6 +45,12 @@ jobs:
       #- run: pip install sphinx sphinx_rtd_theme recommonmark ruamel.yaml pytest
       - name: Install requirements for documentation build
         run: pip install -r smarthomeng/doc/requirements.txt
+
+      - name: Build Requirements for SmartHomeNG
+        run: python3 smarthomeng/tools/build_requirements.py
+      - name: Install SmartHomeNG base requirements
+        # base requirements are needed for building of documentation
+        run: pip install -r smarthomeng/requirements/base.txt
       - name: List installed packages
         run: pip list