Pro tip: If the extension has already been updated for the day (or recently) and you’re not seeing updates you should be seeing. Uninstall and reinstall the extension to get the most recent update (as soon as @roosterburton announces an update since updates are always quick and frequent—when needed with all their extensions).
You’ll most likely have to re-customize the add-on to your needs again—depending on the extension (like with the Rooster Hotkeys extension)—but sometimes, getting the most recent update quicker is worth it—in my opinion.
Otherwise, just wait until it updates on its own with your automatic updates setting shown by roosterburton.