OZG-7609 test with easier prefix

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

@@ -51,6 +51,6 @@ class ReportingAggregationManagerSettingDtoService implements SettingDtoService
 
 	@Override
 	public String getSettingKeyName() {
-		return "ozgcloud.aggregation";
+		return "aggregation";
 	}
 }

src/test/resources/yamlTemplates/settings/aggregation.yaml.tmpl

-ozgcloud:
 aggregation:
   aggregationMappings:
   - formIdentifier: