Implement a function to show new commits for plugins that have `version` set

[macintacos]

Describe the feature

For plugins that I have specified with a given "version" key so that they are effectively "pinned", I would like to have the ability in the editor to see what versions have been released since the version I have currently installed, so that I can determine whether or not to bump those versions.

This is similar to a "dry-run" feature request, however is a bit different because in theory a straightforward "dry-run" function would not show any commits if you're already on the latest version you have set in your config.