RUSTSEC-2021-0076 bump libsecp256k1 (#9391)

* RUSTSEC-2021-0076 bump libsecp256k1

libsecp256k1 allows overflowing signatures
https://rustsec.org/advisories/RUSTSEC-2021-0076

Changes were made to conform to libsecp256k1 version differences.

Closes #9356

* parse_standard_slice() -> parse_overflowing_slice()

* Added v2 host function for ecdsa_verify

* Add feature tag over helpers

* Added ecdsa_verify v2 to test runner

* PR feedback

- Spaces -> tabs
- renamed two helper functions

* Fixed imports after rebasing

* Bump rest of libsecp256k1 (and libp2p)

libp2p also uses libsecp256k1 so it is required to be bumped too, along
with all the version difference changes.

* Add version2 for ecdsa pubkey recovery

* libp2p rebase master fixes

* Fix test panic when non Behaviour event is returned

* Update bin/node/browser-testing/Cargo.toml

* Update primitives/core/src/ecdsa.rs

* Update primitives/core/src/ecdsa.rs

* Update Cargo.lock

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

substrate/client/network/src/request_responses.rs

@@ -567,6 +567,11 @@ impl NetworkBehaviour for RequestResponsesBehaviour {
 								address,
 								score,
 							}),
+						NetworkBehaviourAction::CloseConnection { peer_id, connection } =>
+							return Poll::Ready(NetworkBehaviourAction::CloseConnection {
+								peer_id,
+								connection,
+							}),
 					};
 
 					match ev {
@@ -1009,7 +1014,7 @@ mod tests {
 				let (mut swarm, _) = swarms.remove(0);
 				async move {
 					loop {
-						match swarm.next_event().await {
+						match swarm.select_next_some().await {
 							SwarmEvent::Behaviour(Event::InboundRequest { result, .. }) => {
 								result.unwrap();
 							},
@@ -1028,7 +1033,7 @@ mod tests {
 			let mut response_receiver = None;
 
 			loop {
-				match swarm.next_event().await {
+				match swarm.select_next_some().await {
 					SwarmEvent::ConnectionEstablished { peer_id, .. } => {
 						let (sender, receiver) = oneshot::channel();
 						swarm.behaviour_mut().send_request(
@@ -1106,7 +1111,7 @@ mod tests {
 				let (mut swarm, _) = swarms.remove(0);
 				async move {
 					loop {
-						match swarm.next_event().await {
+						match swarm.select_next_some().await {
 							SwarmEvent::Behaviour(Event::InboundRequest { result, .. }) => {
 								assert!(result.is_ok());
 								break
@@ -1126,7 +1131,7 @@ mod tests {
 			let mut response_receiver = None;
 
 			loop {
-				match swarm.next_event().await {
+				match swarm.select_next_some().await {
 					SwarmEvent::ConnectionEstablished { peer_id, .. } => {
 						let (sender, receiver) = oneshot::channel();
 						swarm.behaviour_mut().send_request(
@@ -1226,7 +1231,7 @@ mod tests {
 			.spawn_obj(
 				async move {
 					loop {
-						match swarm_2.next_event().await {
+						match swarm_2.select_next_some().await {
 							SwarmEvent::Behaviour(Event::InboundRequest { result, .. }) => {
 								result.unwrap();
 							},
@@ -1279,7 +1284,7 @@ mod tests {
 			let mut num_responses = 0;
 
 			loop {
-				match swarm_1.next_event().await {
+				match swarm_1.select_next_some().await {
 					SwarmEvent::ConnectionEstablished { peer_id, .. } => {
 						let (sender_1, receiver_1) = oneshot::channel();
 						let (sender_2, receiver_2) = oneshot::channel();