[SPARK-42063][CORE] Register byte[][] to KyroSerializer

### What changes were proposed in this pull request?

This PR aims to register `byte[][]` to `KryoSerializer`.

### Why are the changes needed?

Spark uses `byte[][]` internally and it causes failure when we use `spark.kryo.registrationRequired=true`.
```
java.lang.IllegalArgumentException: Class is not registered: byte[][]
Note: To register this class use: kryo.register(byte[][].class);
```

### Does this PR introduce _any_ user-facing change?

No.

### How was this patch tested?

Pass the CIs with the newly added test case.

Closes #39569 from dongjoon-hyun/SPARK-42063.

Authored-by: Dongjoon Hyun <dongjoon@apache.org>
Signed-off-by: Yuming Wang <yumwang@ebay.com>

core/src/main/scala/org/apache/spark/serializer/KryoSerializer.scala

@@ -220,6 +220,7 @@ class KryoSerializer(conf: SparkConf)
     kryo.register(Utils.classForName("scala.collection.immutable.$colon$colon"))
     kryo.register(Utils.classForName("scala.collection.immutable.Map$EmptyMap$"))
     kryo.register(classOf[ArrayBuffer[Any]])
+    kryo.register(classOf[Array[Array[Byte]]])
 
     // We can't load those class directly in order to avoid unnecessary jar dependencies.
     // We load them safely, ignore it if the class not found.

core/src/test/scala/org/apache/spark/serializer/KryoSerializerSuite.scala

@@ -104,6 +104,7 @@ class KryoSerializerSuite extends SparkFunSuite with SharedSparkContext {
     check(java.lang.Long.MAX_VALUE)
     check(java.lang.Long.MIN_VALUE)
     check[String](null)
+    check(Array(1.toByte))
     check(Array(1, 2, 3))
     check(Array(1L, 2L, 3L))
     check(Array(1.0, 2.0, 3.0))
@@ -114,6 +115,7 @@ class KryoSerializerSuite extends SparkFunSuite with SharedSparkContext {
     check(Array('a', 'b', 'c'))
     check(Array.empty[Int])
     check(Array(Array("1", "2"), Array("1", "2", "3", "4")))
+    check(Array(Array(1.toByte)))
   }
 
   test("pairs") {