Minor changes to type hints

Author: Nanoemm

maths/polynomials/legendre.py

@@ -1,13 +1,12 @@
 # Imports de bibliothèques standard
 from math import factorial
-from typing import List
 
 # Imports de bibliothèques tierces
 import pytest
 from numpy.polynomial import Polynomial
 
 
-def legendre(n: int) -> List[float]:
+def legendre(n: int) -> list[float]:
     """
     Compute the coefficients of the nth Legendre polynomial.