connectivity: Disable IPv6 with EP feat when netpols exist

The per-endpoint routes feature is broken with IPv6 when there are any
netpols installed (tracked in
cilium/cilium#23852 and
cilium/cilium#23910). Once both issues are
resolved, we can start testing IPv6 with netpols.

Signed-off-by: Martynas Pumputis <m@lambda.lt>

connectivity/check/test.go

@@ -347,6 +347,15 @@ 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}
+	}
+
 	for _, ipFam := range ipFams {
 		switch ipFam {
 		case IPFamilyV4: