Okey, there is another post who are talking about it for CentOS/REHL, like this: Stuck on Tor 0.4.7.13? - #16 by FranklyFlawless (mentionned Debian but another member talked about REHL).
No more update since, and as we can see here Index of /centos/8/x86_64 there is no package newer than 4.8.5, maybe it will come later…? I personnaly don’t have the answer 