feat: use 1.12.1 from Kitware fork

[henryiii]

Let's release this first, see #245 and #302.

Ran nox -s bump -- --upstream-repository Kitware/ninja.

Interesting, this includes a new feature branch, msvc-depfile. We will loose this new addition upgrading to 1.13.0.

There doesn't seem to be a release with binaries yet.

[jcfr]

Interesting, this includes a new feature branch, msvc-depfile. We will loose this new addition upgrading to 1.13.0.

I just shared feedback with the CMake team explaining the situation.

In a nutshell, I mentioned it would be ideal to update the Kitware fork based of version 1.13 while also integrating the following features:

• make-4.3-jobserver-1: Based on this release, which includes pipe-based jobserver support for Make 4.3 and was conveniently created by the same developer who upstreamed jobserver support
• msvcdepfile-1: Adds Windows-specific support for parsing MSVC dependency files. See PR #2600

I will follow-up once we discussed it and settle on a path forward.