Add Windows version of each exclusion item to duplicated list

[katieclaiborne-duet]

This is a:

• [ ] bug fix PR with no breaking changes
• [x] new functionality

Link to Issue

Closes #485

Description & motivation

Based on Benoit's suggestion, I've:

• created a new list variable containing excluded path patterns and their Windows equivalents
• updated exclusion flagging to loop through this new variable

These changes will allow teams to define a single set of paths to exclude, rather than having to define each path and its Windows equivalent.

Integration Test Screenshot

Checklist

• [x] I have verified that these changes work locally on the following warehouses (Note: it's okay if you do not have access to all warehouses, this helps us understand what has been covered)
  • [x] BigQuery
  • [ ] Postgres
  • [ ] Redshift
  • [ ] Snowflake
  • [ ] Databricks
  • [ ] DuckDB
  • [ ] Trino/Starburst
• [ ] I have updated the README.md (if applicable)
• [ ] I have added tests & descriptions to my models (and macros if applicable)

Testing

I don't have a Windows machine, but worked with a teammate who does to test these changes.

In our private dbt repo, we:

• [x] removed duplicate Windows exclusion path
• [x] repointed project evaluator package to this forked branch
• [x] re-installed package via dbt deps
• [x] confirmed that project evaluator succeeded without duplicate Windows exclusion path

  dbt build --select package:dbt_project_evaluator dbt_project_evaluator_exceptions

[b-per]

As this is a tiny improvement with no new dbt rule/test and no impact to current users I am going to do a patch release instead of a minor one.

[katieclaiborne-duet]

It's good that you managed to test on Windows with a colleague, because otherwise I am not sure we would have figured out how many \ were required 😄

Haha, yes! I was grateful for a copilot.