Add zip stub to Connect Dataset with UnsupportedOperationException

Spark Connect does not yet support the Zip logical plan. Add a
placeholder implementation that throws UnsupportedOperationException.

Co-authored-by: Isaac

Author: zhengruifeng

sql/connect/common/src/main/scala/org/apache/spark/sql/connect/Dataset.scala

@@ -345,6 +345,11 @@ class Dataset[T] private[sql] (
     builder.setJoinType(proto.Join.JoinType.JOIN_TYPE_CROSS)
   }
 
+  /** @inheritdoc */
+  def zip(other: sql.Dataset[_]): DataFrame = {
+    throw new UnsupportedOperationException("zip is not supported in Spark Connect")
+  }
+
   /** @inheritdoc */
   def joinWith[U](other: sql.Dataset[U], condition: Column, joinType: String): Dataset[(T, U)] = {
     val joinTypeValue = toJoinType(joinType, skipSemiAnti = true)