[AWS::BedrockAgentCore::GatewayTarget] - [Docs] - CredentialProvider with "Property description not available"

### Name of the resource

Other

### Resource name

AWS::BedrockAgentCore::GatewayTarget

### Reference Link

https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/aws-properties-bedrockagentcore-gatewaytarget-credentialprovider.html

### Details

> The CredentialProvider property type specifies Property description not available. for an [AWS::BedrockAgentCore::GatewayTarget](https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/aws-resource-bedrockagentcore-gatewaytarget.html).

Start with the linked CloudFormation reference page for AWS::BedrockAgentCore::GatewayTarget and its CredentialProvider property, then inspect the corresponding resource definition used to generate the documentation. Done means the CredentialProvider property has a real description instead of “Property description not available.”

Written by the indexing model from the issue text.