ice: Fix enum handling

Caused by: java.lang.ClassCastException: class java.nio.HeapByteBuffer cannot be cast to class java.lang.CharSequence
	at org.apache.iceberg.parquet.ParquetConversions.fromParquetPrimitive(ParquetConversions.java:58)
	at org.apache.iceberg.parquet.ParquetUtil.footerMetrics(ParquetUtil.java:145)
	at com.altinity.ice.cli.internal.cmd.Insert.processFile(Insert.java:501)

Author: shyiko

ice/src/main/java/org/apache/iceberg/parquet/ParquetConversions.java

@@ -90,6 +90,7 @@ static Function<Object, Object> converterFromParquet(
   static Function<Object, Object> converterFromParquet(PrimitiveType type) {
     if (type.getOriginalType() != null) {
       switch (type.getOriginalType()) {
+        case ENUM:
         case UTF8:
           // decode to CharSequence to avoid copying into a new String
           return binary -> StandardCharsets.UTF_8.decode(((Binary) binary).toByteBuffer());