fabfile: Fix poetry install command

fabfile.py

@@ -15,7 +15,7 @@ def deploy(c):
     with c.cd(project_path), c.prefix('source {}/venv/bin/activate'.format(project_path)):
         c.run('git pull')  # Get source
         c.run('pip install -U pip poetry')
-        c.run('poetry install --dev')  # install deps in virtualenv
+        c.run('poetry install --no-dev')  # install deps in virtualenv
         c.run('python manage.py collectstatic --noinput')  # Collect static
         c.run('python manage.py migrate')  # Run DB migrations