Interesting. We changed the docs recently with Update FTL compiling docs by DL6ER · Pull Request #1286 · pi-hole/docs · GitHub
The only difference I can see is that we use 3.6.4 vs 3.6.5 and that your used ‘….releases/download/’ where the docs point to ‘…/archive/refs/tags‘.
I hope there is no difference in their files between the release and their tag with the same version.