feat(gossipsub): implement gossipsub 1.2 beta

This PR implements gossipsub 1.2 beta bringing changes over from lighthouse
ref PR: sigp/lighthouse#5422

Please include any relevant issues in here, for example:
libp2p/specs#548

Pull-Request: #5697.

Author: hopinheimer

Cargo.lock

@@ -141,6 +141,7 @@ tracing = "0.1.41"
 tracing-subscriber = "0.3.19"
 unsigned-varint = { version = "0.8.0" }
 web-time = "1.1.0"
+hashlink = "0.9.0"
 
 [patch.crates-io]
 

Cargo.toml

@@ -1,5 +1,8 @@
 ## 0.48.0
 
+- Introduce Gossipsub v1.2 [spec](https://github.com/libp2p/specs/blob/master/pubsub/gossipsub/gossipsub-v1.2.md).
+  See [PR 5697](https://github.com/libp2p/rust-libp2p/pull/5697)
+
 - Correct state inconsistencies with the mesh and fanout when unsubscribing.
   See [PR 5690](https://github.com/libp2p/rust-libp2p/pull/5690)
 

protocols/gossipsub/CHANGELOG.md

@@ -24,6 +24,7 @@ fnv = "1.0.7"
 futures = { workspace = true }
 futures-timer = "3.0.2"
 getrandom = { workspace = true }
+hashlink = { workspace = true}
 hex_fmt = "0.3.0"
 web-time = { workspace = true }
 libp2p-core = { workspace = true }