Changes included:
• GitHub Actions workflow: rename job from 'test-unit' to 'test-container' to match intent.
• RPM packaging: replace %{_libdir}/package-manager with a fixed /usr/lib/package-manager
to avoid lib/lib64 divergence on CentOS and ensure pkgmgr + Nix flake resolution works
consistently across distros.
• Docker entrypoint: add automatic CA-bundle detection and set NIX_SSL_CERT_FILE to fix
TLS issues on CentOS ('unable to get local issuer certificate') when Nix fetches flake
inputs.
These updates stabilize container-based tests and unify the runtime environment
for Fedora, CentOS, and other distributions.
Reference:
ChatGPT conversation: https://chatgpt.com/share/6937aa72-d33c-800f-a63f-c353e92de6b3
