add python 12 compatibility

[diegodoimo]

• fix cython deprecation error ""Using deprecated NumPy API" rebuilding the .c cython files
• add python12 evironment test setup

[codecov-commenter]

Codecov Report

Attention: 6 lines in your changes are missing coverage. Please review.

Comparison is base (12e521c) 79.14% compared to head (83ddf0a) 79.10%.

Files	Patch %	Lines
dadapy/metric_comparisons.py	40.00%	3 Missing :warning:
dadapy/density_estimation.py	50.00%	2 Missing :warning:
dadapy/_utils/metric_comparisons.py	75.00%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #113 +/- ## ========================================== - Coverage 79.14% 79.10% -0.04% ========================================== Files 15 15 Lines 2512 2508 -4 ========================================== - Hits 1988 1984 -4 Misses 524 524 ```

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