Something is stomping over the timestamp of generated scene.h right
after the build script finishes:
`Dirty gpui v0.1.0 (/Users/someonetoignore/work/zed/zed/crates/gpui):
the file target/debug/build/gpui-ca04eedfe8d0e13c/out/scene.h has
changed (1705922004.637000680s, 1s after last build at
1705922003.507431315s)`
^ That's an output of `-v` flag added to either `cargo run` or `cargo
build`.
This comes up when you do `cargo build` followed by `cargo run` or
another `cargo build`; the artifact is not getting reused, even though
it should be possible?
Release Notes:
- N/A
