How to make a keyboard shortcut for context menu item “Quick Actions -> Convert Image”?

In Finder app, I can control-click on an image, and in the resultant contextual menu, I can select “Quick Actions” and then “Convert Image”. How can I create a keyboard shortcut to accomplish this, rather than having to mouse the trackpad around the popup menus? I have already looked through System Settings, Keyboard, Keyboard Shortcuts, and all submenus there, to see if one already exists. And I have attempted to create an App Shortcut there for either All Applications or Finder.app, targeting “Quick Actions->Convert Image” and simply “Convert Image”.