docs(codepipeline-actions): fix permission's link for ECRBuildAndPublish (#34015)

### Reason for this change

It appears that the structure and the link on the permissions page of the CodePipeline action has changed.

### Checklist
- [x] My code adheres to the [CONTRIBUTING GUIDE](https://github.com/aws/aws-cdk/blob/main/CONTRIBUTING.md) and [DESIGN GUIDELINES](https://github.com/aws/aws-cdk/blob/main/docs/DESIGN_GUIDELINES.md)

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*By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license*

Author: go-to-k

packages/aws-cdk-lib/aws-codepipeline-actions/lib/ecr/build-and-publish-action.ts

@@ -100,7 +100,7 @@ export class EcrBuildAndPublishAction extends Action {
 
   protected bound(scope: Construct, stage: codepipeline.IStage, options: codepipeline.ActionBindOptions):
   codepipeline.ActionConfig {
-    // see: https://docs.aws.amazon.com/codepipeline/latest/userguide/how-to-custom-role.html#edit-role-ECRBuildAndPublish
+    // see: https://docs.aws.amazon.com/codepipeline/latest/userguide/action-reference-ECRBuildAndPublish.html#edit-role-ECRBuildAndPublish
     if (this.props.registryType === RegistryType.PUBLIC) {
       // Public registry
       const repositoryArn = cdk.Stack.of(scope).formatArn({