As the title of this topic might confuse some readers in the future:
The Ancient libhiredis.so.0.13, is required by libgvm_util.so seems to be actually not really valid. To the best of my knowledge it seems that it was missed to rebuild the gvm-libs component after upgrading the distribution which is always required when using software components build from source. Otherwise libraries / binaries which are still linked against some older libraries (and which might not exist on the system anymore) are left behind on the system.
Instead of creating some symlinks the correct solution probably would be to rebuild all Greenbone Community Edition components and to make sure that no older ones are left behind which should solve this as well.