Enable ttcn3 centos latest tests
As we have new releases for all Osmocom components now, the centos packages should be available in the latest feed. The ttcn3 testsuites can now run against these.
I've just configured OBS latest to not only build, but also publish, packages for ortp and libdbi and triggered a rebuild of these packages. This should fix the following error I got while testing some of the osmo-*-latest containers built against centos8:
- nothing provides libortp.so.9()(64bit) needed by libosmotrau2-1.1.1-2.2.x86_64
- % Done changed from 0 to 90