feat: Set Django settings module in Dockerfile (#109)

Author: prakashchoudhary07

production.Dockerfile

@@ -19,6 +19,7 @@ ENV PYTHONUNBUFFERED=1
 # Set Django settings module
 ARG ENV=production
 ENV ENV=${ENV}
+ENV DJANGO_SETTINGS_MODULE=todo_project.settings.${ENV}
 
 WORKDIR /app