[FEA]: Improve toolshed/build_path_finder_dlls.py to minimize potential for accidents.

[rwgk]

Is this a duplicate?

• I confirmed there appear to be no duplicate issues for this request and that I agree to the Code of Conduct

Area

cuda.bindings

Is your feature request related to a problem? Please describe.

Currently the output of the script requires manual cleanup. Even though that's documented, in practice oversights slip in.

Describe the solution you'd like

The script should produce output that does not require manual cleanup.

Describe alternatives you've considered

No response

Additional context

No response

[rwgk]

Currently the output of the script requires manual cleanup.

This was fixed by #723.

More improvements are possible (#723 (comment)), but that's sufficiently easy and low priority, can slip in the work opportunistically.