adds metrics tracking gossip crds writes and votes (backport #20953) (#20982)

* adds metrics tracking crds writes and votes (#20953)

(cherry picked from commit 1297a13586)

# Conflicts:
#	core/src/cluster_nodes.rs
#	gossip/benches/crds_shards.rs
#	gossip/src/cluster_info.rs
#	gossip/src/cluster_info_metrics.rs
#	gossip/src/crds_entry.rs
#	gossip/src/crds_gossip.rs
#	gossip/src/crds_gossip_pull.rs
#	gossip/src/crds_gossip_push.rs
#	gossip/src/crds_shards.rs
#	gossip/tests/crds_gossip.rs
#	rpc/src/rpc_service.rs

* updates itertools version in gossip

* removes backport merge conflicts

Co-authored-by: behzad nouri <behzadnouri@gmail.com>

core/src/cluster_nodes.rs

@@ -318,6 +318,7 @@ mod tests {
         super::*,
         rand::{seq::SliceRandom, Rng},
         solana_gossip::{
+            crds::GossipRoute,
             crds_value::{CrdsData, CrdsValue},
             deprecated::{
                 shuffle_peers_and_index, sorted_retransmit_peers_and_stakes,
@@ -384,7 +385,10 @@ mod tests {
             for node in nodes.iter().skip(1) {
                 let node = CrdsData::ContactInfo(node.clone());
                 let node = CrdsValue::new_unsigned(node);
-                assert_eq!(gossip.crds.insert(node, now), Ok(()));
+                assert_eq!(
+                    gossip.crds.insert(node, now, GossipRoute::LocalMessage),
+                    Ok(())
+                );
             }
         }
         (nodes, stakes, cluster_info)