test: Skip LocalDns validation when unsupported (#7378)

Author: jepio

e2e/validation.go

@@ -131,7 +131,7 @@ func ValidateCommonLinux(ctx context.Context, s *Scenario) {
 	}
 
 	// localdns is not supported on scriptless, privatekube and VHDUbuntu2204Gen2ContainerdAirgappedK8sNotCached.
-	if s.Tags.Scriptless != true && s.VHD != config.VHDUbuntu2204Gen2ContainerdPrivateKubePkg && s.VHD != config.VHDUbuntu2204Gen2ContainerdAirgappedK8sNotCached {
+	if s.Tags.Scriptless != true && s.VHD != config.VHDUbuntu2204Gen2ContainerdPrivateKubePkg && s.VHD != config.VHDUbuntu2204Gen2ContainerdAirgappedK8sNotCached && !s.VHD.UnsupportedLocalDns {
 		ValidateLocalDNSService(ctx, s, "enabled")
 		ValidateLocalDNSResolution(ctx, s, "169.254.10.10")
 	}