Investigate migration off lambda to ecs

[marcoacierno]

• Load balancer setups (pricing if going for ALB or what setup would be needed for a "self-hosted" load balancer?)
• pricing calculation
• benefits of the migration: API request time improvements
• scalability

Useful links:

Route53 failover / healthchecks pricing calculator: https://calculator.aws/#/createCalculator/Route53

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Highly connected to #3810

The biggest pain point was the nat instance networking configuration conflicting with the Docker network configuration so if we can get rid of lambda we won't need a nat instance anymore

Now that we have a setup where we launch a Fargate task to process anything "heavy"