harvesting CSW: changed loglevel for invalid metadata to info (#8303)

- other harvester have same or higher loglevel as well
- helps to identify invalid metadata

harvesters/src/main/java/org/fao/geonet/kernel/harvest/harvester/csw/Aligner.java

@@ -539,7 +539,7 @@ private Element retrieveMetadata(String uuid) {
 
                 params.getValidate().validate(dataMan, context, response, groupIdVal);
             } catch (Exception e) {
-                log.debug("Ignoring invalid metadata with uuid " + uuid);
+                log.info("Ignoring invalid metadata with uuid " + uuid);
                 result.doesNotValidate++;
                 return null;
             }