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>

rpc/src/rpc_service.rs

@@ -474,6 +474,7 @@ mod tests {
         crate::rpc::create_validator_exit,
         solana_gossip::{
             contact_info::ContactInfo,
+            crds::GossipRoute,
             crds_value::{CrdsData, CrdsValue, SnapshotHash},
         },
         solana_ledger::{
@@ -759,6 +760,7 @@ mod tests {
                     ],
                 ))),
                 1,
+                GossipRoute::LocalMessage,
             )
             .unwrap();
         assert_eq!(rm.health_check(), "ok");
@@ -775,6 +777,7 @@ mod tests {
                     vec![(1000 + health_check_slot_distance - 1, Hash::default())],
                 ))),
                 1,
+                GossipRoute::LocalMessage,
             )
             .unwrap();
         assert_eq!(rm.health_check(), "ok");
@@ -791,6 +794,7 @@ mod tests {
                     vec![(1000 + health_check_slot_distance, Hash::default())],
                 ))),
                 1,
+                GossipRoute::LocalMessage,
             )
             .unwrap();
         assert_eq!(rm.health_check(), "behind");