[Package Request] - CloudFormation tool `rain`

[r-heimann]

What package is missing from Amazon Linux 2023? Please describe and include package name.

https://github.com/aws-cloudformation/rain

Is this an update to existing package or new package request?

New package

Is this package available in Amazon Linux 2? If it is available via external sources such as EPEL, please specify.

I am not aware that it currently exists in either AL2 or AL2023

Any additional information you'd like to include. (use-cases, etc)

CloudFormation rain maintainers said i should open a GitHub issue here: https://github.com/aws-cloudformation/rain/issues/190