Renders in the docs some metrics introduced in https://github.com/scylladb/scylladb/pull/24046/files that were not being displayed in https://docs.scylladb.com/manual/stable/reference/metrics.html
Closes scylladb/scylladb#25561
(cherry picked from commit c3c70ba73f)
Closes scylladb/scylladb#25629