fix: Byte array Literals failed on cast (apache#2432)

Author: comphead

spark/src/main/scala/org/apache/comet/serde/literals.scala

@@ -131,8 +131,8 @@ object CometLiteral extends CometExpressionSerde[Literal] with Logging {
         })
       case ByteType =>
         array.foreach(v => {
-          val casted = v.asInstanceOf[Integer]
-          listLiteralBuilder.addByteValues(casted)
+          val casted = v.asInstanceOf[lang.Byte]
+          listLiteralBuilder.addByteValues(casted.intValue())
           listLiteralBuilder.addNullMask(casted != null)
         })
       case ShortType =>

spark/src/test/scala/org/apache/comet/exec/CometNativeReaderSuite.scala

@@ -468,7 +468,7 @@ class CometNativeReaderSuite extends CometTestBase with AdaptiveSparkPlanHelper
       """
         |select 1 a
         |""".stripMargin,
-      "select array(1, 2, null, 3, null) from tbl")
+      "select array(cast(1 as byte), cast(2 as byte), null, cast(3 as byte), null) from tbl")
   }
 
   test("native reader - support ARRAY literal SHORT fields") {