rust 1.95 incoming

Hi!

I've just run a bob build of meta-pkgs/bulk-test-rust successfully on
NetBSD 11.99.5/x86_64. It built fine.

The diff to the current 1.94 package is small, and even the Illumos
parts are already updated.

So, it all looks good and I'll update rust in pkgsrc to 1.95 very soon.

(A couple of packages are already stuck because they require this new
version.)

Cheers,
 Thomas