One of my Open Source projects uses Packages to build the macOS installer. After GUI-based setup of the pckgproject file, the installer build can be easially invoked from the command line through the packagesbuild command.
I'm now setting up a GitHub Actions based build workflow, running on the GitHub-hosted runners, which should ideally create a ready-to-use installer, so I need to invoke packagesbuild during that process. Unfortunately packagesbuild is not available on the macos-10.15 runner used. I don't see any option to install it during the workflow run, as it's not available through e.g. homebrew but maybe I'm overlooking something. Is there any option I'm overlooking beneath rebuilding my installer and switching to pkgbuild?