Update harfbuzz to 1.06
Update harfbuzz to 1.06

Refs atom/electron#4513.

paulcbetts/libchromiumcontent,brave/libchromiumcontent,atom/libchromiumcontent,paulcbetts/libchromiumcontent,brave/libchromiumcontent,bbondy/libchromiumcontent,electron/libchromiumcontent,bbondy/libchromiumcontent,electron/libchromiumcontent,atom/libchromiumcontent