Update libp2p (#2101)

This is a little bit of a tip-of-the-iceberg PR. It houses a lot of code changes in the libp2p dependency. 

This needs a bit of thorough testing before merging. 

The primary code changes are:
- General libp2p dependency update
- Gossipsub refactor to shift compression into gossipsub providing performance improvements and improved API for handling compression



Co-authored-by: Paul Hauner <paul@paulhauner.com>

beacon_node/network/src/sync/manager.rs

@@ -713,7 +713,7 @@ impl<T: BeaconChainTypes> SyncManager<T> {
             // The sent block is not the correct block, remove the head block and downvote
             // the peer
             let _ = parent_request.downloaded_blocks.pop();
-            let peer = parent_request.last_submitted_peer.clone();
+            let peer = parent_request.last_submitted_peer;
 
             warn!(self.log, "Peer sent invalid parent.";
                 "peer_id" => %peer,
@@ -759,7 +759,7 @@ impl<T: BeaconChainTypes> SyncManager<T> {
                 }
                 Ok(_) | Err(BlockError::BlockIsAlreadyKnown { .. }) => {
                     let process_id = ProcessId::ParentLookup(
-                        parent_request.last_submitted_peer.clone(),
+                        parent_request.last_submitted_peer,
                         chain_block_hash,
                     );
                     let blocks = parent_request.downloaded_blocks;
@@ -852,7 +852,7 @@ impl<T: BeaconChainTypes> SyncManager<T> {
 
         // We continue to search for the chain of blocks from the same peer. Other peers are not
         // guaranteed to have this chain of blocks.
-        let peer_id = parent_request.last_submitted_peer.clone();
+        let peer_id = parent_request.last_submitted_peer;
 
         if let Ok(request_id) = self.network.blocks_by_root_request(peer_id, request) {
             // if the request was successful add the queue back into self