For each new node added to the raft config populate its ID to IP mapping
in raft address map from the gossiper. The mapping may have expired if a
node is added to the raft configuration long after it first appears in
the gossiper.
Fixesscylladb/scylladb#20600
Backport to all supported versions since the bug may cause bootstrapping failure.
Closesscylladb/scylladb#20601
* github.com:scylladb/scylladb:
test: extend existing test to check that a joining node can map addresses of all pre-existing nodes during join
group0: make sure that address map has an entry for each new node in the raft configuration
9224e48d6b