fix scheduled pseudo event projection

internal/repository/milestone/aggregate.go

@@ -1,6 +1,9 @@
 package milestone
 
 import (
+	"context"
+
+	"github.com/zitadel/zitadel/internal/api/authz"
 	"github.com/zitadel/zitadel/internal/eventstore"
 )
 
@@ -13,13 +16,14 @@ type Aggregate struct {
 	eventstore.Aggregate
 }
 
-func NewAggregate(id, resourceOwner, instanceID string) *Aggregate {
+func NewAggregate(ctx context.Context, id string) *Aggregate {
+	instanceID := authz.GetInstance(ctx).InstanceID()
 	return &Aggregate{
 		Aggregate: eventstore.Aggregate{
 			Type:          AggregateType,
 			Version:       AggregateVersion,
 			ID:            id,
-			ResourceOwner: resourceOwner,
+			ResourceOwner: instanceID,
 			InstanceID:    instanceID,
 		},
 	}