fix: TypeError fix for can_cast

[ianna]

fixes issue #3205

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 82.02%. Comparing base (b749e49) to head (8cc6f93).
Report is 163 commits behind head on main.

Additional details and impacted files

Files with missing lines	Coverage Δ
src/awkward/_broadcasting.py	92.50% <100.00%> (-2.86%)	⬇️
src/awkward/_nplikes/array_module.py	89.56% <100.00%> (+3.18%)	⬆️

... and 104 files with indirect coverage changes

[ianna]

@jpivarski - please, check when you have time. This PR ensures that the scalars passed to cupy functions are the zero dimensional cupy.ndarrays. I've tested the PR with cupy 13.2 (where the type error occurred) and with cupy 13.3 (where can_cast accepts the Python types).

[jpivarski]

I've verified that all tests work on my GPU.