chore(tests): skip flaky test (#90763)

pkg/services/notifications/smtp_test.go

@@ -150,6 +150,8 @@ func TestSmtpDialer(t *testing.T) {
 }
 
 func TestSmtpSend(t *testing.T) {
+	// Test is currently very flaky. Skipping it for now.
+	t.Skip()
 	srv := smtpmock.New(smtpmock.ConfigurationAttr{
 		MultipleRcptto: true,
 	})