CloudFormation Specifications
- Update CloudFormation specs to 6.3.0 (pull [1155](https://github.com/aws-cloudformation/cfn-python-lint/pull/1155))
- Update Pricing and SSM data to 2019.10.05 (pull [1155](https://github.com/aws-cloudformation/cfn-python-lint/pull/1155))
- Update Update CloudWatch alarm comparison operators (pull [1154](https://github.com/aws-cloudformation/cfn-python-lint/pull/1154))
Fixes
- Update rule [E1022](https://github.com/aws-cloudformation/cfn-python-lint/blob/main/docs/rules.md#E1022) to allow lists in custom resources (pull [1151](https://github.com/aws-cloudformation/cfn-python-lint/pull/1151))