Satellite 6.15 to 6.16 upgrade failing with python38 package dependencies

Issue

• When attempting to upgrade Satellite from version 6.15 to 6.16 on systems built with version 6.11 or earlier, a dependency conflict occurs. The upgrade process fails due to outdated packages (python38-pytz, python38-cffi, and python38-babel) that are no longer required in version 6.16 but are not automatically removed during the upgrade.