Use ParquetOptions in test, so change to pulbic

Use ParquetOptions in test

Author: fjh100456

sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetOptions.scala

@@ -28,7 +28,7 @@ import org.apache.spark.sql.internal.SQLConf
 /**
  * Options for the Parquet data source.
  */
-private[parquet] class ParquetOptions(
+class ParquetOptions(
     @transient private val parameters: CaseInsensitiveMap[String],
     @transient private val sqlConf: SQLConf)
   extends Serializable {