Pantheon updates show success, but modules still outdated in admin interface. Any idea why?

I used the Pantheon Dashboard to run updates to my Drupal 10 site. It reported that all updates ran successfully. And yet, when I go to my Drupal site's module update page (/admin/modules/update), I still see modules that have updates. For example, Linkit, shown here in my Drupal site as version 6.1.4:

Here's the line in the composer require section:

"drupal/linkit": "^6.1.4",

Shouldn't that pick up any new updates?

Additionally, Pantheon's commit log is reporting that it updated Linkit from 6.1.5 to 6.1.6:

What's going on here?