Method not available on this version
This method is only available on newer versions.
The first available version (v2_6_3) is shown here.
unlock!()
public
This is called to update the spec and installation.
If the source plugin is loaded from lockfile or otherwise, it shall refresh
the cache/specs (e.g. git sources can make a fresh clone).
# File lib/bundler/plugin/api/source.rb, line 163
def unlock!
end