fix integration test, read one more event before actual tests

integration-tests/application_tests/application_test.go

@@ -100,6 +100,7 @@ func TestMain(m *testing.M) {
 	// a user and role and update the user because of the login. After then only logins are done, no user and role creations.
 	// This means that this will block after trying once, because of the three attempts to read from eventChannels.
 
+	_ = <-application.addEventChannel
 	_ = <-application.addEventChannel
 	_ = <-application.addEventChannel
 	_ = <-application.updateEventChannel