Updated black version

[S-Dafarra]

black got updated and the style changed in many files

[diegoferigo]

This is not the first time that new black releases introduce changes that are not backward compatible. In the past, for lack of time, I just proceeded as you did in this PR (that at one point has to be done regardless).

However, this time I searched better in the documentation and I found out¹ that black receives a major release every January, and they guarantee backward compatibility only within major releases. Therefore, once per year, if black is not pinned like black ~= 24.0, the style CI might start failing. cc @traversaro

Footnotes

1. https://black.readthedocs.io/en/stable/the_black_code_style/index.html#stability-policy ↩

[S-Dafarra]

Thanks @diegoferigo.

Merging