Type handling issue in alm2map

[mreineck]

Running the following test causes a TypeError at the last line (with healpy 1.16.2):

import healpy as hp
import numpy as np

alm_dp = np.zeros((10,), dtype=np.complex128)
alm_sp = np.zeros((10,), dtype=np.complex64)

hp.alm2map(alm_dp, nside=1, lmax=3)
hp.alm2map_spin([alm_dp,alm_dp], nside=1, lmax=3, spin=2)
hp.alm2map_spin([alm_sp,alm_sp], nside=1, lmax=3, spin=2)
hp.alm2map(alm_sp, nside=1, lmax=3)

martin@marvin:~/codes/ducc$ python3 bug.py 
Traceback (most recent call last):
  File "/home/martin/codes/ducc/bug.py", line 10, in <module>
    hp.alm2map(alm_sp, nside=1, lmax=3)
  File "/usr/lib/python3/dist-packages/astropy/utils/decorators.py", line 607, in wrapper
    return function(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/martin/.local/lib/python3.11/site-packages/healpy/sphtfunc.py", line 504, in alm2map
    output = sphtlib._alm2map(
             ^^^^^^^^^^^^^^^^^
TypeError: Type must be Complex for this function

It seems that alm2map_spin can deal with single precision and double precision inputs, but alm2map fails for single precision. I think this must be some kind of oversight.