Forgot to migrate this test apply to applyBlocking

Author: jonenst

src/test/java/org/gridsuite/modification/server/service/ModificationIndexationTest.java

@@ -392,7 +392,7 @@ void testReindexAll() {
         List<ModificationEntity> entities = modificationRepository.saveModifications(groupUuid1, loadCreationInfosList.stream().map(ModificationEntity::fromDTO).toList());
 
         // apply modifications to index them
-        networkModificationApplicator.applyModifications(new ModificationApplicationGroup(groupUuid1, entities, reportInfos), networkInfos);
+        networkModificationApplicator.applyModificationsBlocking(new ModificationApplicationGroup(groupUuid1, entities, reportInfos), networkInfos);
 
         // assert they are both stored in ES and in postgres
         assertEquals(3, modificationApplicationRepository.findAll().size());