release-build: disable precompiled headers

The Clang available in the Darling environment doesn't support PCH properly.
It doesn't report PCH is not supported, but the build is plagued with garbage
from the header files when doing so.

Disabling PCH just makes the build more robust so we can disable it for
every build.

Author: illwieckz

build-release

@@ -456,7 +456,7 @@ build () {
 	mkdir -pv "${target_build_dir}"
 	mkdir -pv "${release_dir}"
 
-	local cmake_opts='-DBUILD_GAME_NATIVE_DLL=OFF -DBUILD_GAME_NATIVE_EXE=OFF'
+	local cmake_opts='-DBUILD_GAME_NATIVE_DLL=OFF -DBUILD_GAME_NATIVE_EXE=OFF -DUSE_PRECOMPILED_HEADER=OFF'
 	local cmake_cflags=''
 
 	if "${system_macos}"