[SPARK-34863][SQL][FOLLOWUP] Disable `spark.sql.parquet.enableNestedC…

…olumnVectorizedReader` by default

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

This PR disables `spark.sql.parquet.enableNestedColumnVectorizedReader` by default.

### Why are the changes needed?

In apache#34659 the config was turned mainly for testing reason. As the feature is new, we should turn it off by default.

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

The config `spark.sql.parquet.enableNestedColumnVectorizedReader` is turned off by default now.

### How was this patch tested?

Existing tests.

Closes apache#36055 from sunchao/disable.

Authored-by: Chao Sun <sunchao@apple.com>
Signed-off-by: Liang-Chi Hsieh <viirya@gmail.com>

sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala

@@ -1015,7 +1015,7 @@ object SQLConf {
           s"Requires ${PARQUET_VECTORIZED_READER_ENABLED.key} to be enabled.")
       .version("3.3.0")
       .booleanConf
-      .createWithDefault(true)
+      .createWithDefault(false)
 
   val PARQUET_RECORD_FILTER_ENABLED = buildConf("spark.sql.parquet.recordLevelFilter.enabled")
     .doc("If true, enables Parquet's native record-level filtering using the pushed down " +

sql/core/src/test/resources/sql-tests/results/explain-aqe.sql.out

@@ -1125,8 +1125,7 @@ struct<plan:string>
 -- !query output
 == Physical Plan ==
 *Filter v#x IN ([a],null)
-+- *ColumnarToRow
-   +- FileScan parquet default.t[v#x] Batched: true, DataFilters: [v#x IN ([a],null)], Format: Parquet, Location [not included in comparison]/{warehouse_dir}/t], PartitionFilters: [], PushedFilters: [In(v, [[a],null])], ReadSchema: struct<v:array<string>>
++- FileScan parquet default.t[v#x] Batched: false, DataFilters: [v#x IN ([a],null)], Format: Parquet, Location [not included in comparison]/{warehouse_dir}/t], PartitionFilters: [], PushedFilters: [In(v, [[a],null])], ReadSchema: struct<v:array<string>>
 
 
 -- !query

sql/core/src/test/resources/sql-tests/results/explain.sql.out

@@ -1067,8 +1067,7 @@ struct<plan:string>
 -- !query output
 == Physical Plan ==
 *Filter v#x IN ([a],null)
-+- *ColumnarToRow
-   +- FileScan parquet default.t[v#x] Batched: true, DataFilters: [v#x IN ([a],null)], Format: Parquet, Location [not included in comparison]/{warehouse_dir}/t], PartitionFilters: [], PushedFilters: [In(v, [[a],null])], ReadSchema: struct<v:array<string>>
++- FileScan parquet default.t[v#x] Batched: false, DataFilters: [v#x IN ([a],null)], Format: Parquet, Location [not included in comparison]/{warehouse_dir}/t], PartitionFilters: [], PushedFilters: [In(v, [[a],null])], ReadSchema: struct<v:array<string>>
 
 
 -- !query