Avoid creating duplicate `TransportAddress` where possible

[DaveCTurner]

TransportAddress is a small immutable wrapper around an InetSocketAddress so that they can be sent over the wire. We don't make very many InetSocketAddress objects but we create new wrappers around them on every inbound message and on outbound exceptions:

elasticsearch/server/src/main/java/org/elasticsearch/transport/InboundHandler.java

Line 322 in 2a5b698

response.remoteAddress(new TransportAddress(remoteAddress));

elasticsearch/server/src/main/java/org/elasticsearch/transport/InboundHandler.java

Line 241 in 2a5b698

request.remoteAddress(new TransportAddress(channel.getRemoteAddress()));

elasticsearch/server/src/main/java/org/elasticsearch/transport/OutboundHandler.java

Line 146 in 34d9cbe

TransportAddress address = new TransportAddress(channel.getLocalAddress());

We should really be re-using the TransportAddress wrapper in these cases.

[elasticmachine]

Pinging @elastic/es-distributed (Team:Distributed)

[DaveCTurner]

I just realised this has an easy fix, opened #80691.