build: drop python 3.7

[tlambert03]

No description provided.

[codecov]

Codecov Report

Attention: 1 lines in your changes are missing coverage. Please review.

Comparison is base (d5fa29a) 95.43% compared to head (cc350b2) 95.42%.
Report is 1 commits behind head on main.

❗ Current head cc350b2 differs from pull request most recent head deba232. Consider uploading reports for the commit deba232 to get more accurate results

Files	Patch %	Lines
src/nd2/__init__.py	66.66%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #208      +/-   ##
==========================================
- Coverage   95.43%   95.42%   -0.01%     
==========================================
  Files          17       17              
  Lines        2346     2319      -27     
==========================================
- Hits         2239     2213      -26     
+ Misses        107      106       -1     

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[codspeed-hq]

CodSpeed Performance Report

Merging #208 will not alter performance

_{Comparing drop37 (deba232) with main (d5fa29a)}

Summary

✅ 13 untouched benchmarks