integration: TestNetworkLoopbackNat is broken on GitHub Runner

Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>
(cherry picked from commit df731c745a)

Makefile

@@ -69,6 +69,7 @@ DOCKER_ENVS := \
 	-e DOCKER_USERLANDPROXY \
 	-e DOCKERD_ARGS \
 	-e DELVE_PORT \
+	-e GITHUB_ACTIONS \
 	-e TEST_FORCE_VALIDATE \
 	-e TEST_INTEGRATION_DIR \
 	-e TEST_SKIP_INTEGRATION \

hack/make/.integration-test-helpers

@@ -150,6 +150,7 @@ test_env() {
 			DOCKER_REMOTE_DAEMON="$DOCKER_REMOTE_DAEMON" \
 			DOCKER_ROOTLESS="$DOCKER_ROOTLESS" \
 			DOCKERFILE="$DOCKERFILE" \
+			GITHUB_ACTIONS="$GITHUB_ACTIONS" \
 			GOCACHE="$GOCACHE" \
 			GOPATH="$GOPATH" \
 			GOTRACEBACK=all \

integration/container/nat_test.go

@@ -56,6 +56,7 @@ func TestNetworkLocalhostTCPNat(t *testing.T) {
 }
 
 func TestNetworkLoopbackNat(t *testing.T) {
+	skip.If(t, testEnv.GitHubActions, "FIXME: https://github.com/moby/moby/issues/41561")
 	skip.If(t, testEnv.OSType == "windows", "FIXME")
 	skip.If(t, testEnv.IsRemoteDaemon)