Tweak `dweldat` and `pardat.tieback` tests based on feedback

This PR makes a few tweaks to dweldat and pardat.tieback tests based on feedback from Valuations:

Updates not-null test for dweldat attic finish to filter out cases where attic is 3: None
Updates not-null test for dweldat basement finish to filter out cases where bsmt is 2: Slab
Updates dweldat tests for number of commercial units to only allow nulls or 0 when class is not 212, and disallow these values when class is 212
Excludes pardat test to ensure hyphens are not in tieback from workbook, since Valuations can't act on it

ccao-data / data-architecture