[9.0] Align `TransportVersion#bestKnownVersion` with 8.x (#123801)#123976

elasticsearchmachine merged 1 commit intoelastic:9.0elastic/elasticsearch:9.0from

DaveCTurner:backport/9.0/pr-123801DaveCTurner/elasticsearch:backport/9.0/pr-123801Copy head branch name to clipboard