Upgrade GCC version from 11.2.0 to 12.4.0 (#207)

Co-authored by: nijincheng@iscas.ac.cn;

Signed-off-by: ffgan <sudoemt@gmail.com>

Author: ffgan

config.mak

@@ -16,7 +16,7 @@ OUTPUT = /usr/local/musl
 # headers, which are not needed unless compiling programs that use them.
 
 # BINUTILS_VER =
-GCC_VER = 11.2.0
+GCC_VER = 12.4.0
 
 MUSL_VER = 1.2.3