fix: revert back the optimisation for sync to keep readability

Signed-off-by: Giuseppe Chiesa <mail@giuseppechiesa.it>

Author: gchiesa

controllers/podlabels/abstract.go

@@ -91,7 +91,7 @@ func (r *podLabelsReconciler) getTenant(ctx context.Context, namespacedName type
 func (r *podLabelsReconciler) sync(available map[string]string, tenantSpec map[string]string) map[string]string {
 	if tenantSpec != nil {
 		if available == nil {
-			return tenantSpec
+			available = tenantSpec
 		} else {
 			for key, value := range tenantSpec {
 				if available[key] != value {