Function run_hooks 

pub fn run_hooks(
    hooks: &BTreeMap<String, String>,
    extra_prepare: Option<&str>,
    vars: &VersionVariables,
    work_dir: &Path,
    dry_run: bool,
) -> Result<()>

Run side-effect hooks (verify/prepare/publish/success) in order. On failure, runs the fail hook if present and then propagates the error. extra_prepare is the temporary prepare command supplied via --exec (run after the config’s prepare).