Previously, the `system.local`'s `rpc_address` column kept local node's
`rpc_address` from the scylla.yaml configuration. Although it sounds
like it makes sense, there are a few reasons to change it to the value
of scylla.yaml's `broadcast_rpc_address`:
- The `broadcast_rpc_address` is the address that the drivers are
supposed to connect to. `rpc_address` is the address that the node
binds to - it can be set for example to 0.0.0.0 so that Scylla listens
on all addresses, however this gives no useful information to the
driver.
- The `system.peers` table also has the `rpc_address` column and it
already keeps other nodes' `broadcast_rpc_address`es.
- Cassandra is going to do the same change in the upcoming version 4.1.
Fixes: #11201
eff8a6368c