test: increase timeout waiting for reconciled michine in cluster lifecycle test

test/e2e/cluster_test.go

@@ -104,7 +104,7 @@ func TestClusterLifecycle(t *testing.T) {
 				}
 
 				return true
-			}, 15*time.Second, 50*time.Millisecond, "cluster store not reconciled on machine #%d", i+1)
+			}, 30*time.Second, 50*time.Millisecond, "cluster store not reconciled on machine #%d", i+1)
 		}
 	})