Upgrade to the `freetype-sys` 0.23.0 #244

Job	Run time
stable, Linux, shared library	1m 59s
stable, macOS, shared library	34s
stable, Linux, static linking, no pkg-config	1m 54s
stable, macOS, static library	41s
stable, Windows, static library	2m 47s
stable, Emscripten, static library	1m 34s
stable, iOS, static library	30s
Result	-1s
	9m 58s

Provide feedback