fix(deposit): [AOU-1687] display "send back for validation" button for validators

https://issues.unige.ch/browse/AOU-1687

Needed for aou-portal!559 (closed)

AoU-Admin/src/main/java/ch/unige/aou/controller/admin/PublicationController.java

@@ -357,8 +357,8 @@ public class PublicationController extends ResourceWithFileController<Publicatio
     }
   }
 
-  @AdminPermissions
   @PostMapping(SolidifyConstants.URL_ID_PLUS_SEP + AouActionName.SEND_BACK_FOR_VALIDATION)
+  @PreAuthorize("@publicationPermissionService.isAllowed(#id, 'SEND_BACK_FOR_VALIDATION')")
   public HttpEntity<Result> sendBackForValidation(@PathVariable String id) {
     Publication publication = this.itemService.findOne(id);
     if (this.historyService.hasBeenCompleted(publication.getResId())) {