chore: reorder import statements for consistency

Author: rwnobrega

src/komm/_constellations/Constellation.py

@@ -3,12 +3,11 @@
 import numpy as np
 import numpy.typing as npt
 
+from .. import abc
 from ..types import Array1D, Array2D
 
 T = TypeVar("T", np.floating, np.complexfloating)
 
-from .. import abc
-
 
 class Constellation(abc.Constellation[T]):
     r"""