Revert "OZG-7609 test with easier prefix"

This reverts commit 87bcc47d.

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

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

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

-aggregation:
-  aggregationMappings:
-  - formIdentifier:
-      formEngineName: %s
-      formId: %s
-    fieldMappings:
-    - sourcePath: %s
-      targetPath: %s
-    - sourcePath: %s
-      targetPath: %s
-    - sourcePath: %s
-      targetPath: %s
-  - formIdentifier:
-      formEngineName: %s
-      formId: %s
-    fieldMappings:
-    - sourcePath: %s
-      targetPath: %s
-    - sourcePath: %s
-      targetPath: %s
+ozgcloud:
+  aggregation:
+    aggregationMappings:
+    - formIdentifier:
+        formEngineName: %s
+        formId: %s
+      fieldMappings:
+      - sourcePath: %s
+        targetPath: %s
+      - sourcePath: %s
+        targetPath: %s
+      - sourcePath: %s
+        targetPath: %s
+    - formIdentifier:
+        formEngineName: %s
+        formId: %s
+      fieldMappings:
+      - sourcePath: %s
+        targetPath: %s
+      - sourcePath: %s
+        targetPath: %s