Retry tests on CI

Now that we are running each test 6 times on CI, the risk of flakiness
is higher. I want to fix these tests for good but it'l take time, so
we're just retrying for now

pkg/integration/clients/go_test.go

@@ -48,8 +48,8 @@ func TestIntegration(t *testing.T) {
 		},
 		false,
 		0,
-		// Only allowing one attempt per test. We'll see if we get any flakiness
-		1,
+		// Allow two attempts at each test to get around flakiness
+		2,
 	)
 
 	assert.NoError(t, err)