Bug#1122011: python3-numcodecs: incompatible to Python3.14

[Ole Streicher]

Package: python3-numcodecs
Version:  0.16.5+ds-1
Severity: serious
Control: affects -1 src:sunpy

With Python 3.14, numcodecs cannot be imported anymore:

$ python3.14
Python 3.14.0 (main, Dec  1 2025, 11:18:59) [GCC 15.2.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
 >>> import numcodecs
Traceback (most recent call last):
   File "<python-input-0>", line 1, in <module>
     import numcodecs
   File "/usr/lib/python3/dist-packages/numcodecs/__init__.py", line 43, 
in <module>
     from numcodecs import blosc
ImportError: cannot import name 'blosc' from partially initialized 
module 'numcodecs' (most likely due to a circular import) 
(/usr/lib/python3/dist-packages/numcodecs/__init__.py)

This blocks the compilation of (the new version of) Sunpy.