Close iter when reset to avoid resource not closed issue (#9035)

Signed-off-by: CH Kang <ch1010.developer@gmail.com>

datavec/datavec-api/src/main/java/org/datavec/api/records/reader/impl/LineRecordReader.java

@@ -173,6 +173,7 @@ public class LineRecordReader extends BaseRecordReader {
             throw new UnsupportedOperationException("Cannot reset without first initializing");
         try {
             inputSplit.reset();
+            close();
             initialize(inputSplit);
             splitIndex = 0;
         } catch (Exception e) {