Pyvinecopulib

* Vectorize the stats functions properly (https://github.com/vinecopulib/pyvinecopulib/pull/151)

* New Vinecop.str() (https://github.com/vinecopulib/pyvinecopulib/pull/153)

* Add variables names option for vinecop plots (https://github.com/vinecopulib/pyvinecopulib/pull/152)

* Improved documentation (144, 146)
* Plot functions for bivariate and vine copulas (143)
* Discrete examples (140)
* [Fit method for vines](https://github.com/vinecopulib/vinecopulib/commit/8c2d209e6382bc8f265c3199cf6d2dc9db2bfba3)
* [Discrete Rosenblatt transform](https://github.com/vinecopulib/vinecopulib/commit/e132e19f4af3f0bebcf3dd6979b7ceaaa9f0ea5d)
* [Tawn copulas](https://github.com/vinecopulib/vinecopulib/commit/f5e3a6b8595504613372955c987c8cd09e4be8d9)
* [Improvements to MST-based edge selection](https://github.com/vinecopulib/vinecopulib/commit/d48fa3e9dc8ac7bcd0181ef37691a7e4aae089e5)
* [Better stability in BB7 pdf](https://github.com/vinecopulib/vinecopulib/commit/c40227e692f36f411a07c38a66212de7b89647b4)
* [Analytical derivatives in discrete pdf/hfuncs](https://github.com/vinecopulib/vinecopulib/commit/d8db8f174452530d551714ff28bf7d1e97f698b0)

* Modernize the package build (e.g., switch to pyproject.toml)
* Add latest versions of Python (3.11 and 3.12)

Release following the updates of vinecopulib to 0.6.2, see
https://github.com/vinecopulib/vinecopulib/releases. The most
relevant changes are summarized below.

BUG FIXES

* replace bitwise ops on boolean operands (563)

* handle `NaN`s in `to_pseudo_obs()` (566)

* Replace calls to `sprintf` in boost libraries (565)