### Is there an existing issue for this? - [x] I have searched the existing issues ### Problem Statement Currently the `kong` addon in KTF can only use the `kong` ingress class. We want to support installing Kong for different ingress classes. ### Proposed Solution Add a `WithIngressClass` method in kong add on to set ingress class. ### Additional information _No response_ ### Acceptance Criteria - [ ] Can specify ingress class by Kong addon to install Kong in the cluster.