APIv2: Change APIv2 key URL
APIv2: Change APIv2 key URL

The previous URL matches the `settings.LOGIN_EXEMPT_URLS` so that no
authentication has been enforced.

OWASP/django-DefectDojo,OWASP/django-DefectDojo,OWASP/django-DefectDojo,OWASP/django-DefectDojo,rackerlabs/django-DefectDojo,rackerlabs/django-DefectDojo,OWASP/django-DefectDojo,rackerlabs/django-DefectDojo,rackerlabs/django-DefectDojo