fix(libwholegraph): set build_type to "nightly" and also publish wheel#193

raydouglass merged 1 commit intorapidsai:branch-25.06rapidsai/cugraph-gnn:branch-25.06from

gforsyth:fix_nightly_libwholegraphgforsyth/cugraph-gnn:fix_nightly_libwholegraphCopy head branch name to clipboard