deprecate numb_test

[njzjz]

See #1243.

[codecov-commenter]

Codecov Report

Merging #1249 (9598442) into devel (edb8bd9) will decrease coverage by 0.01%.
The diff coverage is 62.50%.

@@            Coverage Diff             @@
##            devel    #1249      +/-   ##
==========================================
- Coverage   75.99%   75.97%   -0.02%     
==========================================
  Files          91       91              
  Lines        7389     7402      +13     
==========================================
+ Hits         5615     5624       +9     
- Misses       1774     1778       +4     

Impacted Files	Coverage Δ
deepmd/utils/argcheck.py	90.00% <ø> (-0.04%)	⬇️
deepmd/utils/compat.py	83.33% <62.50%> (-1.23%)	⬇️

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