[ETL][Lake] - Update existing code to query database by using PersistentDataStore.query_data

[idiom-bytes]

trafficstars

Motivation

• Review pds.query_data.
• Consider not returning a polars lazy_frame but something else... perhaps a generic pointer where you can then do more with it.

DoD:

• [ ] Updated existing logic that queries data from PDS/SQL, to get a better pointer to the data
• [ ] When using polars/pandas, the usage should be stable
• [ ] Tests are updated and passing