Integrate 'mozilla-django-oidc' dependency, to support Authorization Code flow, which is required by Agent Connect. Thus, we provide a secure back channel OIDC flow, and return to the client only a session cookie. Done: - Replace JWT authentication by Session based authentication in DRF - Update Django settings to make OIDC configurations easily editable - Add 'mozilla-django-oidc' routes to our router - Implement a custom Django Authentication class to adapt 'mozilla-django-oidc' to our needs 'mozilla-django-oidc' routes added are: - /authenticate - /callback (the redirect_uri called back by the Idp) - /logout