New property `relationshipRef` not in `provider.definition.schema.v1.json`

[ewbankkit]

Recent updates to some CloudFormation resource schemas

• AWS::ECS::Cluster
• AWS::S3::MultiRegionAccessPoint
• AWS::SSM::Association

have added a new property, relationshipRef , to certain properties, e.g.

        "Region": {
            "type": "object",
            "properties": {
                "Bucket": {
                    "type": "string",
                    "minLength": 3,
                    "maxLength": 63,
                    "pattern": "^[a-z0-9][a-z0-9//.//-]*[a-z0-9]$",
                    "relationshipRef": {
                        "typeName": "AWS::S3::Bucket",
                        "propertyPath": "/properties/BucketName"
                    }
                }, 
                "BucketAccountId": {
                    "type": "string",
                    "minLength": 12,
                    "maxLength": 12,
                    "pattern": "^[0-9]{12}$"
                }
            },
            "required": [
                "Bucket"
            ],
            "additionalProperties": false
        }

This property has not been added to https://github.com/aws-cloudformation/cloudformation-resource-schema/blob/master/src/main/resources/schema/provider.definition.schema.v1.json, so validation of these resource schemas against the meta-schema are failing.