[AWS::BedrockAgentCore::GatewayTarget] - [Docs] - TargetConfiguration with wrong description

### Name of the resource

Other

### Resource name

AWS::BedrockAgentCore::GatewayTarget

### Reference Link

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

### Details

Currently states

> The target configuration for the Smithy model target.

But the TargetConfiguration parameter accepts an McpTargetConfiguration that besides Smithy could also accept a Lambda or OpenApiSchema target configuration.

Needs to be generalized.

Open the linked AWS CloudFormation resource reference for AWS::BedrockAgentCore::GatewayTarget and inspect the TargetConfiguration parameter description. Confirm that it covers the accepted Smithy, Lambda, and OpenApiSchema target configurations; done means the documentation uses a generalized description rather than describing only Smithy targets.

Written by the indexing model from the issue text.