change kubernetes API links to use k8s-api-version (#3962)

Co-authored-by: Yi Zhong <peteryizhong@google.com>

site/content/en/docs/Reference/gameserver.md

@@ -208,7 +208,7 @@ for `address`.)
 The policy for `address` will work for many use-cases, but for some advanced cases, such as IPv6 enablement, you may need
 to evaluate all `addresses` and pick the addresses that best suits your needs.
 
-[addresses]: https://v1-26.docs.kubernetes.io/docs/reference/generated/kubernetes-api/v1.26/#nodeaddress-v1-core
-[podIPs]: https://v1-26.docs.kubernetes.io/docs/reference/generated/kubernetes-api/v1.26/#podip-v1-core
+[addresses]: https://v1-28.docs.kubernetes.io/docs/reference/generated/kubernetes-api/v1.28/#nodeaddress-v1-core
+[podIPs]: https://v1-28.docs.kubernetes.io/docs/reference/generated/kubernetes-api/v1.28/#podip-v1-core
 [addressFunc]: https://github.com/googleforgames/agones/blob/a59c5394c7f5bac66e530d21446302581c10c225/pkg/gameservers/gameservers.go#L37-L71
 [gss]: {{% ref "/docs/Reference/agones_crd_api_reference.html#agones.dev/v1.GameServerStatus"  %}}

site/content/en/docs/Reference/gameserverallocation.md

@@ -245,7 +245,7 @@ when using an API call. If not specified when using the command line, the [names
 
 [gameserverselector]: {{% ref "/docs/Reference/agones_crd_api_reference.html#allocation.agones.dev/v1.GameServerSelector"  %}}
 [namespace]: https://kubernetes.io/docs/concepts/overview/working-with-objects/namespaces
-[addresses]: https://v1-26.docs.kubernetes.io/docs/reference/generated/kubernetes-api/v1.26/#nodeaddress-v1-core
+[addresses]: https://v1-28.docs.kubernetes.io/docs/reference/generated/kubernetes-api/v1.28/#nodeaddress-v1-core
 [counterstatus]: {{% ref "/docs/Reference/agones_crd_api_reference.html#agones.dev/v1.CounterStatus" %}}
 [liststatus]: {{% ref "/docs/Reference/agones_crd_api_reference.html#agones.dev/v1.ListStatus" %}}