update np.typing import

[jhamman]

fixes conda-forge/staged-recipes#18599
closes #28

[codecov]

Codecov Report

Merging #29 (22e85b9) into main (6c39dd1) will decrease coverage by 0.02%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main      #29      +/-   ##
==========================================
- Coverage   91.76%   91.74%   -0.03%     
==========================================
  Files           6        6              
  Lines         340      339       -1     
==========================================
- Hits          312      311       -1     
  Misses         28       28              

Impacted Files	Coverage Δ
xarray_schema/types.py	100.00% <100.00%> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 6c39dd1...22e85b9. Read the comment docs.