CloudFormation Specifications
- Add region `il-central-1` (pull [2836](https://github.com/aws-cloudformation/cfn-lint/pull/2836))
- Update CloudFormation specs to `135.0.0` (pull [2837](https://github.com/aws-cloudformation/cfn-lint/pull/2837))
Fixes
- Allow for `RetainExceptOnCreate` for `DeletionPolicy` (pull [2834](https://github.com/aws-cloudformation/cfn-lint/pull/2834))
- Fix language extension transform to resolve foreach refs in Sub parameters (pull [2846](https://github.com/aws-cloudformation/cfn-lint/pull/2846))
- Fix language extension transform to allow `Fn::FindInMap` to return arrays (pull [2845](https://github.com/aws-cloudformation/cfn-lint/pull/2845))