message: refactor: Resolve App::template deprecation
diff: @@ -417,7 +417,7 @@ fn cli() -> App {
  // opening clap up to allow us to style our help template
  .global_setting(AppSettings::DisableColoredHelp)
  .override_usage(usage)
  - .template(
  + .help_template(
  "\
  Rust's package manager
  