Add a comment why prealloc linter is disabled when configuring endpoints

Signed-off-by: Milos Gajdos <milosthegajdos@gmail.com>

registry/handlers/app.go

@@ -441,6 +441,10 @@ func (app *App) register(routeName string, dispatch dispatchFunc) {
 // configureEvents prepares the event sink for action.
 func (app *App) configureEvents(configuration *configuration.Configuration) {
 	// Configure all of the endpoint sinks.
+	// NOTE(milosgajdos): we are disabling the linter here as
+	// if an endpoint is disabled we continue with the evaluation
+	// of the next one so we do not know the exact size the slice
+	// should have at the time the iteration starts
 	// nolint:prealloc
 	var sinks []events.Sink
 	for _, endpoint := range configuration.Notifications.Endpoints {