Update history.txt

megamek/docs/history.txt

@@ -99,6 +99,7 @@ MEGAMEK VERSION HISTORY:
 + FIX #5901: check for 0 weapons before determining the next-previous weapon index
 + FIX #5902: redisplay unit when clearing all attacks
 + PR #5919: A simple test that checks canonicity is working as intended
++ PR #5925: Fix to make mech file parser canon check unit testable in IDE
 
 0.49.20 (2024-06-28 2100 UTC) (THIS IS THE LAST VERSION TO SUPPORT JAVA 11)
 + PR #5281, #5327, #5308, #5336, #5318, #5383, #5369, #5384, #5455, #5505, #5541: Code internals: preparatory work for supporting game types such as SBF, code cleanup for string drawing, superclass change for BoardView,