[fix] support the data source field is less than the target (Hive) fi…

…eld，it will throw null pointer exception(apache#8150)

seatunnel-connectors-v2/connector-file/connector-file-base/src/main/java/org/apache/seatunnel/connectors/seatunnel/file/sink/config/FileSinkConfig.java

@@ -187,6 +187,7 @@ public FileSinkConfig(@NonNull Config config, @NonNull SeaTunnelRowType seaTunne
         this.sinkColumnsIndexInRow =
                 this.sinkColumnList.stream()
                         .map(column -> columnsMap.get(column.toLowerCase()))
+                        .filter(e -> e != null)
                         .collect(Collectors.toList());
 
         if (!CollectionUtils.isEmpty(this.partitionFieldList)) {