Add more logging to barrier and drain rpc to try and pinpoint https://github.com/scylladb/scylladb/issues/26281
Bakport since we want to have it if it happens in the field.
Fixes: SCYLLADB-1838
Refs: #26281
- (cherry picked from commit dd75f53c5d)
- (cherry picked from commit 026e870e54)
- (cherry picked from commit 485c2504ad)
- (cherry picked from commit d232b08be6)
- (cherry picked from commit 269637ffa3)
Parent PR: #29735Closesscylladb/scylladb#29801
* https://github.com/scylladb/scylladb:
session, raft_topology: add periodic warnings for hung drain and stale version waits
session: add info-level logging to drain_closing_sessions
raft_topology: log sub-step progress in local_topology_barrier
raft_topology: log read_barrier progress in topology cmd handler
token_metadata: improve stale versions diagnostics