Fix for not finding group_vars

Author: bedroge

.github/workflows/build-client-packages.yml

@@ -29,6 +29,11 @@ jobs:
           [[ $REF_NAME == refs/tags/v* ]] && VERSION=${REF_NAME/refs\/tags\/v/}
           echo ::set-output name=version::${VERSION}
 
+      # The next step uses a custom Ansible inventory, and due to that it cannot find
+      # the group_vars folder inside the inventory folder. This symlink fixes that.
+      - name: Make symlink to group_vars
+        run: ln -s inventory/group_vars
+
       - name: Prepare package source
         uses: roles-ansible/check-ansible-debian-stretch-action@master
         with: