This update for openSUSE-repos fixes the following issues:

Update to version 20230725.c6c492e:

* Use cdn-o-o instead of downloadcontentcdn-o-o
* openSUSE-repos adaptation of CDN
* improve comment on Leap16 handling
* Build -Leap16 on ALP/TW like build env
* correct flavor of Leap16
* Add Leap 16.0 definitions