Ensures the affinity function is the same as in Quickwit 0.8

[fulmicoton]

Closes #5576

[trinity-1686a]

quickwit/quickwit-search/src/cluster_client.rs and quickwit/quickwit-search/src/search_job_placer.rs were modified in #5564, i think a comprehensive fix should revert some of these change. That would likely mean changing quickwit/quickwit-common/src/rendezvous_hasher.rs::node_affinity() (and all its callers) to use an SocketAddr instead of a impl Hash