refactor(elasticloadbalancingv2-targets): update AlbTarget constructor (

#27516)

This PR for elasticloadbalancingv2-targets is to change Constructor for AlbTarget to accept interface IApplicationLoadBalancer instead of ApplicationLoadBalancer. This helps it from being used alongside ApplicationLoadBalancer.fromLookup and ApplicationLoadBalancer.fromApplicationLoadBalancerAttributes.

Closes #27466.

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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*

packages/aws-cdk-lib/aws-elasticloadbalancingv2-targets/lib/alb-target.ts

@@ -39,7 +39,7 @@ export class AlbTarget extends AlbArnTarget {
    * @param alb The application load balancer to load balance to
    * @param port The port on which the target is listening
    */
-  constructor(alb: elbv2.ApplicationLoadBalancer, port: number) {
+  constructor(alb: elbv2.IApplicationLoadBalancer, port: number) {
     super(alb.loadBalancerArn, port);
   }
 }