updated changelog

Author: chrissimpkins

CHANGELOG.md

@@ -13,7 +13,7 @@
 - U+0031, increased angle of top stroke vs. horizontal, all sets (legibility vs. U+006C)
 - U+0031, increased length of the top stroke, all sets (legibility vs. U+006C)
 - U+0031, decreased width of the top stroke, bold and bold italic sets (legibility vs. U+006C)
-- updated Harbuzz build dependency to v1.5.1
+- updated Harbuzz build dependency to v1.7.4
 - updated FreeType build dependency to v2.8.1
 - removed FreeType build patches in ttfautohint-build.sh script (not necessary after above upgrade)
 - modified ttfautohint-build.sh license to MIT License