[Native] Fix PartitionedOutputNode plan node id

[kewang1024]

Presto doesn't have PartitionedOutputNode and assigns its source node's plan
node id to PartitionedOutputOperator.
so Presto UI is expecting PartitionedOutputOperator having same node id as its
source operator.
However, Velox has PartitionedOutputNode whose plan node is is set to "root".

To comply with original assumption, fix partitionedOutputNode plan node id to be
root.<source plan node ID> and parse them back to source plan node ID in task
stats reporting.

Fixes #21741

[kewang1024]

Steps to Reproduce

Set up both environments locally:

• Presto HiveQueryRunner [1 worker]
• Prestissimo environment (HiveExternalWorkerQueryRunner) [1 worker]

Ran query in both environments:
insert into orders_ke select orderkey, custkey, orderstatus, totalprice, '2011-01-01', '1', 'clerk', 2, 'comment' from orders;

JAVA VS CPP

After the change

Ran query in CPP environment:

[xiaoxmeng]

@kewang1024 LGTM. Thanks!