Resolve "Error handling in event publishing via entity services could be improved"

Description

See #248

controller/eventService/Service.go

@@ -23,7 +23,8 @@ type EventService struct {
 }
 
 const (
-	rePublishAttempts = 5
+	// Max number of tries to republish a failed message
+	rePublishAttempts = 10
 )
 
 // NewEventService creates a new connection to the broker and opens a channel for later usage.
@@ -88,7 +89,7 @@ func (e *EventService) PublishEvent(topic string, event event.Event) error {
 // RetryPublish is used to retry publishing an event after a failed attempt.
 func (e *EventService) RetryPublish(topic string, event event.Event) error {
 	ctx := context.Background()
-	backOff := retry.NewConstant(2 * time.Second)
+	backOff := retry.NewFibonacci(time.Second)
 
 	if err := retry.Do(ctx, retry.WithMaxRetries(rePublishAttempts, backOff), func(ctx context.Context) error {
 		if pubErr := e.PublishEvent(topic, event); pubErr != nil {