New image pushed to ecr upon changes detected in /src and subsequently deployed to ecs.

Required deployment iam privileges.

[
    "dynamodb:*", 
    "s3:*", 
    "ecr:*", 
    "iam:*", 
    "ecs:*",
    "ec2:*", 
    "elasticloadbalancing:*"
]

Commits to main will kick off a deployment.

Required github action variables.

• AWS_ACCOUNT_ID
• AWS_REGION
• AWS_ROLE role with deployment privileges
• AWS_ROLE_VALIDATE_ONLY role with readonly privileges (can be same as AWS_ROLE)