cilium/cilium#21954 for the IPv6 path was resolved only for v1.14, but not for v1.13. In order to be able to run the latest connectivity tests on v1.13, we need to skip curl requests to the IPv6 addresses in that particular test.

Ideally, the skip condition in the outsideToNodePort should be based on Cilium version and whether there are any L7 netpols installed. This is because the same test case is being used by north-south-loadbalancing which is not prone to the IPv6 issue.