Install ninja's syntax file from vim's Vundle

I would like to install the ninja-build syntax file using vim's Vundle, what should I do?

In Vundle, the github repository itself is a plug-in, and the plug-in on vim.org is easy to install.

But how do I install a single file plug-in like ninja's syntax file?

The syntax file for ninja can be found at the link below.
https://github.com/ninja-build/ninja/blob/master/misc/ninja.vim

You can add it to rtp without using Vundle, but I would like to manage it as much as possible with Vundle