Fix build after core changes (#15869)

Signed-off-by: Jan N. Klug <github@klug.nrw>

bundles/org.openhab.persistence.influxdb/src/main/java/org/openhab/persistence/influxdb/InfluxDBPersistenceService.java

@@ -199,6 +199,7 @@ public class InfluxDBPersistenceService implements ModifiablePersistenceService
         store(item, date, state, null);
     }
 
+    @Override
     public void store(Item item, ZonedDateTime date, State state, @Nullable String alias) {
         if (!serviceActivated) {
             logger.warn("InfluxDB service not ready. Storing {} rejected.", item);