Describe the bug
The BurrIII distribution implementation in skpro/distributions/burr_iii.py incorrectly wraps scipy.stats.burr12 (Burr Type XII) instead of scipy.stats.burr (Burr Type III).

While the code contains a comment stating that Burr III is Burr XII with d=1 (which is mathematically true as a special case), this implementation is problematic for several reasons:

Mathematical Inconsistency: Using the wrong Scipy object is conceptually incorrect and error-prone.
Missing Parameters: BurrIII should ideally support two shape parameters ($c$ and $d$) just like BurrXII, but it is currently restricted to one ($c$) with $d$ hardcoded to 1.
Inaccurate Implementation: The _get_scipy_object method explicitly returns burr12.

To Reproduce

# From skpro/distributions/burr_iii.py
def _get_scipy_object(self) -> rv_continuous:
    return burr12  # Should be 'burr'

Expected behavior

BurrIII should wrap scipy.stats.burr.
BurrIII should ideally support both c and d shape parameters.

Environment

OS: mac
skpro version: latest main

Additional context
I found this while auditing the distribution library for missing implementations and inconsistencies.