OZG-7609 provide aggregation manager config endpoint without auhtantication

This reverts commit 87bcc47d.

src/main/java/de/ozgcloud/admin/reporting/AggregationMappingRepository.java

@@ -30,10 +30,13 @@ import org.springframework.data.mongodb.repository.Query;
 import org.springframework.data.rest.core.annotation.RepositoryRestResource;
 import org.springframework.security.access.annotation.Secured;
 
-@Secured("ROLE_DATENBEAUFTRAGUNG")
 @RepositoryRestResource
 interface AggregationMappingRepository extends MongoRepository<AggregationMapping, String> {
+
 	@Override
-	@Query("{'_class': 'AggregationMapping'}")
+	@Secured("ROLE_DATENBEAUFTRAGUNG")
 	List<AggregationMapping> findAll();
+
+	@Query("{}")
+	List<AggregationMapping> findAllUnsecured();
 }