Implement Auto-scaling

**User Story:**
As a developer
I want auto scaling implemented
So that when the usage of the system pass a certain threshold new infrastructure are automatically provisioned and deployed

**Acceptance Criteria**
GIVEN the system is up and running
WHEN CPU usage passes a certain threshold (defined by engineers)
THEN a task will automatically provision new ECS tasks

**Note:**
This is required to have a production ready infra as code solution