Fix horsepower weight

[probablykasper]

The horsepower/watt conversion was off by a bit. Should be two 9s, not 3.

Places I used to verify this:

• https://en.wikipedia.org/wiki/Horsepower#Mechanical_horsepower
• https://www.kwtohp.net/hp-to-watts-conversion
• https://www.inchcalculator.com/convert/horsepower-to-watt
• https://www.rapidtables.com/convert/power/hp-to-watt.html

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (2b9b234) 83.33% compared to head (f07ed15) 83.33%.
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #261   +/-   ##
=======================================
  Coverage   83.33%   83.33%           
=======================================
  Files          52       52           
  Lines       14603    14603           
=======================================
  Hits        12170    12170           
  Misses       2433     2433           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[printfn]

Oh wow, that’s a small difference, thanks for spotting that!