doc/tutorial/kubernetes: skip test with short flag

Change-Id: I59ad53bd31583b1c4b24c7aa7ae40b5ab13e1d16
Reviewed-on: https://cue-review.googlesource.com/c/cue/+/2214
Reviewed-by: Marcel van Lohuizen <mpvl@google.com>
diff --git a/doc/tutorial/kubernetes/tut_test.go b/doc/tutorial/kubernetes/tut_test.go
index 774bb73..fe322e3 100644
--- a/doc/tutorial/kubernetes/tut_test.go
+++ b/doc/tutorial/kubernetes/tut_test.go
@@ -37,6 +37,10 @@
 )
 
 func TestTutorial(t *testing.T) {
+	if testing.Short() {
+		t.Skip()
+	}
+
 	cwd, err := os.Getwd()
 	if err != nil {
 		t.Fatal(err)