connectivity: enable IPv6 test for per-endpoint routing

As cilium/cilium#2385 and
cilium/cilium#23910 has been resolved, we
enable IPv6 test for per-endpoint routing.

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

connectivity/check/test.go

@@ -558,13 +558,8 @@ func (t *Test) collectSysdump() {
 func (t *Test) ForEachIPFamily(do func(IPFamily)) {
 	ipFams := []IPFamily{IPFamilyV4, IPFamilyV6}
 
-	// TODO(brb):
-	// The per-endpoint routes feature is broken with IPv6 when there are any
-	// netpols installed (tracked in https://github.com/cilium/cilium/issues/23852
-	// and https://github.com/cilium/cilium/issues/23910). Once both issues
-	// are resolved, we can start testing IPv6 with netpols.
 	if f, ok := t.Context().Feature(FeatureEndpointRoutes); ok && f.Enabled && len(t.cnps) > 0 {
-		ipFams = []IPFamily{IPFamilyV4}
+		ipFams = []IPFamily{IPFamilyV4, IPFamilyV6}
 	}
 
 	for _, ipFam := range ipFams {