Fixed handling of processes data

Author: rimi-itk

src/Controller/Admin/ProcessOverviewCrudController.php

@@ -106,7 +106,7 @@ public function configureFields(string $pageName): iterable
                 ->setFormTypeOptions([
                     // @todo Add search for process
                     'choice_loader' => new CallbackChoiceLoader(function () use ($dataSource): array {
-                        $processes = $this->dataSourceHelper->getProcesses($dataSource);
+                        $processes = $this->dataSourceHelper->getProcesses($dataSource)['items'] ?? [];
                         $options = array_combine(
                             array_column($processes, 'name'),
                             array_column($processes, 'id'),