[staging-next] Darwin stdenvBootstrap fixes 2025-10#448523

Merged

vcunat merged 2 commits intoNixOS:staging-nextfrom

dramforever:darwin-bootstrap-fixes-2025-10

Oct 5, 2025

Commits on Oct 4, 2025

release.nix: Use arm64-apple-darwin in bootstrapConfigs, not aarch64
dramforever
committed
freshBootstraptools.test: Fix Clang test on Darwin
dramforever
committed