Improve App loading to reduce Kubernetes liveness/readiness error

[sebglon]

Is your feature request related to a problem? Please describe
We need to improve the Django app loading to make deployments less disruptive

here is a blog post that we already have implemented on another Django app

Describe the solution you'd like
On the wsgi.py add a call to the Django URL resolver to force the django loading before than wsgi start listening http requests.

Example of code:

get_resolver(ROOT_URLCONF).url_patterns