connectivity: enable outside to nodeport via IPv6 when IPsec is enabled

[jschwinger233]

Enable these test cases as cilium/cilium#23461 has been resolved.

Signed-off-by: Zhichuan Liang gray.liang@isovalent.com

[jschwinger233]

Steps to run the affected test cases:

1. ./contrib/scripts/kind.sh "" 3 "" "" "iptables" "dual"
2. make kind-image
3. k apply -f test/k8s/manifests/ipsec_secret.yaml -n kube-system
4. cilium install --wait --chart-directory=../cilium/install/kubernetes/cilium --helm-set=image.repository=localhost:5000/cilium/cilium-dev --helm-set=image.useDigest=false --helm-set=image.tag=local --helm-set=operator.image.repository=localhost:5000/cilium/operator --helm-set=operator.image.tag=local --helm-set operator.image.suffix= --helm-set=operator.image.useDigest=false --rollback=false --config monitor-aggregation=none --nodes-without-cilium=kind-worker3 --helm-set-string=kubeProxyReplacement=disabled --helm-set-string=tunnel=vxlan --helm-set=ipv6.enabled=true --helm-set=bpf.masquerade=false --helm-set=operator.image.pullPolicy=IfNotPresent --helm-set=image.pullPolicy=IfNotPresent --encryption ipsec
5. ./cilium connectivity test -v --test north-south-loadbalancing --datapath