Make MacOS compile in the CI

[IntegratedQuantum]

Also updates Cubyz-libs after PixelGuys/Cubyz-libs#28 and PixelGuys/Cubyz-libs#27 to validate the CI-generated libraries

fixes #3541
fixes #3543

[IntegratedQuantum]

It appears to be more complicated than I thought it would be, I'm not sure how to work with extensions in MoltenVK, and I'm not going to remote-debug this. Someone who actually has a Mac will have to it when the time comes for #299.

[blackedout01]

@IntegratedQuantum Are you referring to vkCmdPushDescriptorSetKHR? This function got promoted to be part of Vulkan 1.4 and as MoltenVK implements this version, it can just be used as vkCmdPushDescriptorSet when compiling for macOS.
A quick fix would be the following:

if (builtin.target.os.tag == .macos) {
    c.vkCmdPushDescriptorSet(self.handle, @intFromEnum(bindPoint), pipeline.pipelineLayout, 0, @intCast(writeInfo.len), writeInfo.ptr);
} else {
    c.vkCmdPushDescriptorSetKHR(self.handle, @intFromEnum(bindPoint), pipeline.pipelineLayout, 0, @intCast(writeInfo.len), writeInfo.ptr);
}

But it's repetetive, could you suggest a prettier version?

[IntegratedQuantum]

Yes, that's true for this extension, but in the future I would like to support other extensions as well, like VK_EXT_fragment_shader_interlock #817 which is not in any core version.
So I would like to do it properly for this extension, so that we have extension loading set up properly when the time comes for implementing #817.