Dumps_v1: Switch the dumps sync target path to the production location
Not to be merged until 20250630
Until now, we have been using a temporary path on the clouddumps servers as the base location for dumps from airflow to be sent.
This commit causes the dumps to be sent to the production location, instead.
It will be deployed in tandem with a change that stops the dumps from the snapshot and dumpsdata servers being synced to the clouddumps servers, too.
Bug: T397848