Container-related updates

Thanks to @AndreaCrotti for these updates!

Add ecs-parameters to AWS::Events::Rule

This release add ecs-parameters to AWS::Events::Rule making it possible to schedule (FARGATE) tasks on an ECS cluster.

Bump Dependencies

0.45.3

Bump deps 2020-02-25

Bump Cheshire

0.45.2

Bump Cheshire (#197)

Bump Plugin Deps

Plugin dependencies updated to latest. Dependency security check passed.

SSM, Subnet Groups, Updated Dependencies

Thanks to @keerts for these updates!

Resolve minor code quality issue

Note to self: wait for the master build to finish OK before cutting a release!

Support ECS Secrets

Thanks to @keerts for this contribution!

Update CloudWatch Alarm Specs

Thanks @csumpter

Add CloudWatch Anomaly Detector Specs

Thanks @csumpter