Thanks for posting this and you are right the the HB+ updater on food4rhino does not have the fixes for github’s new security protocol.
Using the updated gh file posted here will work.
Another option is to use the older HB+ update component but, before you run it, drag and drop a Ladybug_Ladybug legacy component on your canvass. This component has the updated security protocol fix in it and will cause the old HB+ updater to run correctly.