Invoke provides the fx Invoke option to start the lambda right after the 'start' lifecycle event. It does
not actually start the lambda unless the AWS_LAMBDA_RUNTIME_API is present. Which will be present on a
real deployment but not during testing.
Lambda provides shared fx options (mostly modules) that may be used in any lambda handler so we can
initialize them all in the same way (and even generate the main.go for all lambdas)