pub fn noop(turbo_jsons: HashMap<PackageName, TurboJson>) -> Self {
        let cache = FixedMap::from_iter(
            turbo_jsons
                .into_iter()
                .map(|(key, value)| (key, Some(value))),
        );
        Self {
            // This never gets read from so we populate it with
            repo_root: AbsoluteSystemPath::new(if cfg!(windows) { "C:\\" } else { "/" })
                .expect("wasn't able to create absolute system path")
                .to_owned(),
            cache,
            strategy: Strategy::Noop,
        }
    }
Create a loader that will only return provided turbo.jsons and will
never hit the file system.
Primarily intended for testing
crates/turborepo-lib/src/turbo_json/loader.rs