Fix `PerformanceWarning` when using dask `2025.11.0`

[tcompa]

An automatic bump of the dependency versions in poetry.lock fails - see #985. This has to do with dask 2025.11.0 (see release notes), and specifically with https://github.com/dask/dask/pull/12106/files.

(cc @lorenzocerrone @jluethi)