fix(ci): update CI to match upload-artifact v4

[jeertmans]

See https://github.com/actions/upload-artifact/blob/main/docs/MIGRATION.md#multiple-uploads-to-the-same-named-artifact and PyO3/maturin#1886.

[github-actions]

Rust benchmark results:

 name                                         before ns/iter  changes ns/iter  diff ns/iter  diff %  speedup 
 bench_rt_utils_generate_all_path_candidates  7,370,290       7,361,418              -8,872  -0.12%   x 1.00 
 bench_rt_utils_where_true                    1,802,781       1,823,534              20,753   1.15%   x 0.99 

[github-actions]

Python benchmark results:

Legend:
  Outliers: 1 Standard Deviation from Mean; 1.5 IQR (InterQuartile Range) from 1st Quartile and 3rd Quartile.
  OPS: Operations Per Second, computed as 1 / Mean