Ensure dataplane.Configuration related types don't include v1beta1 types #660
Description
Ensure dataplane.Configuration -related types don't include v1beta1 types:
- This way we don't need to make any validation-related assumptions about them (ex. certain fields cannot be not nil)
- Also, having dataplane.Configuration separate from Gateway API resources should make it easier to maintain/extend and potentially allow for supporting more routing resource types (outside of Gateway API) in the future.
- It will simplify unit tests in the configs package.
FIXME in the code -- https://github.com/nginxinc/nginx-gateway-kubernetes/blob/890fddb787ff3560b9b743647a36b649d498ae51/internal/nginx/config/servers.go#L135