Recent CI jobs are failing with typeguard-related errors. Examples:

• [c++/python] Fixes for dense arrays and core 2.27/dev #3244
• The centralized nightlies job failed on Thursday (2024-10-24) TileDB-Inc/centralized-tiledb-nightlies#25

As an experiment I took a recent merge to main and simply re-ran it with zero code mods:

• https://github.com/single-cell-data/TileDB-SOMA/actions/runs/11522767244/job/32079325840
• https://github.com/single-cell-data/TileDB-SOMA/actions/runs/11522767244/job/32157898699

The only diffs I could find by log-diffing were pyarrow 17 vs 18, which I've ruled out via #3245; also typeguard 4.4.0 recently came out and I don't believe that's the problem either but I'll verify.

[sc-58398]