Support polars 1.16.0

Now pending on the next polars release to include the code of https://github.com/pola-rs/polars/pull/20032 (likely 1.15.1 or 1.16)

Formerly pending on the resolution of:

https://github.com/ARM-software/devlib/issues/708

https://github.com/pola-rs/polars/issues/20000

And less importantly (as it only impacts readthedocs): https://github.com/pola-rs/polars/issues/18896