fix: use accurate lower bound

[flying-sheep]

TODO:

• figure out if we can support scipy 1.13 without ENH: sparse: Add csr 1d sparse arrays and test_arithmetic1d scipy/scipy#19833

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.13%. Comparing base (951282b) to head (ac6b9c2).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #132   +/-   ##
=======================================
  Coverage   99.13%   99.13%           
=======================================
  Files          19       19           
  Lines         464      464           
=======================================
  Hits          460      460           
  Misses          4        4           

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[codspeed-hq]

CodSpeed Performance Report

Merging #132 will not alter performance

_{Comparing lower-bound (ac6b9c2) with main (951282b)}

Summary

✅ 232 untouched