Summary:
[ENG-11487](https://linear.app/comm/issue/ENG-11487/create-fargate-services-on-production).

CPU and Memory values are taken from existing task sizes

Depends on D15497

Test Plan: Terraform plan

Reviewers: tomek

Reviewed By: tomek

Subscribers: ashoat

Differential Revision: https://phab.comm.dev/D15517