Hello,
Searching on Debian repositories of the different versions I see no existence of a 0.4.5.16 version but I do see 0.3.5.16 on buster.
On bullseye you have 0.4.5.10 and you have 0.4.7.13 in backports. Anyways, it seems[1] it is recommended to use the deb.torproject.org repo which provides the latest version (0.4.7.13) from oldoldstable (stretch) to unstable (sid).