Allow dynamically named [ AWS::CloudFront::PublicKey ]

### Name of the resource

AWS::CloudFront::PublicKey

### Resource name

_No response_

### Description

Currently Name is a mandatory field on this resource type.
Under normal circunstances references to it always refer to the Id and not Name.
For this purpose would be much more convenient if Name was an optional attribute of the resource and Cloudformation would dynamically name the resource if a custom name was not provided, which would allow easy replacement and parallel deployments.

### Other Details

I believe the same request applies also to AWS::CloudFront::KeyGroup

Start with this coverage-roadmap entry and review the AWS::CloudFront::PublicKey resource behavior described in the issue. Compare it with the related AWS::CloudFront::KeyGroup request, focusing on optional names, dynamic naming, replacement, and parallel deployments. Done means the requested behavior has a documented resolution or an accepted implementation path for the affected resources.

Written by the indexing model from the issue text.