collect static needs to be done as deployer

This is a follow up bug from the user vs runas thingy...

deploy/django.sls

@@ -53,7 +53,7 @@ deploy_django_{{ project_name }}_collectstatic:
   cmd.run:
     - name: {{ venv_config.python_path }} manage.py collectstatic --noinput
     - cwd: {{ project_config.path }}
-    - runas: {{ project_name }}
+    - runas: deployer
     - require:
       - file: deploy_django_{{ project_name }}_settings
 {% endif %}