[hotfix] Replace fully qualified Comparator reference with simple class name in AdaptHiveParquetUtil

Signed-off-by: Jiwon Park <jpark92@outlook.kr>

Author: j1wonpark

amoro-format-mixed/amoro-mixed-hive/src/main/java/org/apache/iceberg/parquet/AdaptHiveParquetUtil.java

@@ -43,6 +43,7 @@
 
 import java.nio.ByteBuffer;
 import java.util.ArrayList;
+import java.util.Comparator;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
@@ -136,7 +137,7 @@ public static Metrics footerMetrics(
               Literal<?> min;
               Literal<?> max;
               @SuppressWarnings("unchecked")
-              java.util.Comparator<Object> cmp = (java.util.Comparator<Object>) val1.comparator();
+              Comparator<Object> cmp = (Comparator<Object>) val1.comparator();
               if (isInt96(column) && cmp.compare(val1.value(), val2.value()) > 0) {
                 min = val2;
                 max = val1;