Among other things fixes build failure against gcc-13:
$ nix build --impure --expr 'with import ./. {}; gzdoom.override { stdenv = gcc13Stdenv; }' -L
gzdoom> /build/source/src/common/rendering/vulkan/thirdparty/vk_mem_alloc/vk_mem_alloc.h: In function 'void VmaUint32ToStr(char*, size_t, uint32_t)':
gzdoom> /build/source/src/common/rendering/vulkan/thirdparty/vk_mem_alloc/vk_mem_alloc.h:2410:9: error: 'snprintf' was not declared in this scope
gzdoom> 2410 | snprintf(outStr, strLen, "%u", static_cast<unsigned int>(num));
gzdoom> | ^~~~~~~~
gzdoom> /build/source/src/common/rendering/vulkan/thirdparty/vk_mem_alloc/vk_mem_alloc.h:2262:1: note: 'snprintf' is defined in header '<cstdio>'; did you forget to '#include <cstdio>'?
Changes: https://github.com/ZDoom/gzdoom/releases/tag/g4.11.0
