Remove deep-freeze-node dependency
The deep-freeze-node dependency unnecessarily restricts the platform on which it can be installed. This prevents Antora from being installed on certain platforms, like SmartOS. There is an issue filed with the package for this to be fixed, but the maintainer is unresponsive. We need to bring the code into Antora (either into core or as an Antora helper package) and purge this package from the depchain.