Dev: refactor of boilerplate (simplification) (#30) #54

Job	Run time
Staging deployment tests (3.13)	1m 18s
Deploy to Lambda Feedback / Setup	6s
Build Docker Image / Build and Push Docker Image	11m 55s
Deploy to Lambda Feedback / staging-build / Build (staging) & Push on AWS ECR	5m 0s
Deploy to Lambda Feedback / staging-deploy / Deploy (staging)	5s
Deploy to Lambda Feedback / Waiting for approval	27s
Deploy to Lambda Feedback / prod-build / Build (prod) & Push on AWS ECR	1m 22s
Deploy to Lambda Feedback / prod-deploy / Deploy (prod)	8s
	20m 21s

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