[stable2409] Backport #6684 (#6693)

Backport #6684 into `stable2409` from bkontur.

See the
[documentation](https://github.com/paritytech/polkadot-sdk/blob/master/docs/BACKPORT.md)
on how to use this bot.

<!--
  # To be used by other automation, do not modify:
  original-pr-number: #${pull_number}
-->

---------

Co-authored-by: Branislav Kontur <bkontur@gmail.com>

bridges/modules/relayers/src/extension/mod.rs

@@ -126,7 +126,7 @@ pub struct BridgeRelayersSignedExtension<Runtime, Config, LaneId>(
 impl<R, C, LaneId> BridgeRelayersSignedExtension<R, C, LaneId>
 where
 	Self: 'static + Send + Sync,
-	R: RelayersConfig<LaneId = LaneId>
+	R: RelayersConfig<C::BridgeRelayersPalletInstance, LaneId = LaneId>
 		+ BridgeMessagesConfig<C::BridgeMessagesPalletInstance, LaneId = LaneId>
 		+ TransactionPaymentConfig,
 	C: ExtensionConfig<Runtime = R, LaneId = LaneId>,
@@ -250,7 +250,7 @@ where
 		// let's also replace the weight of slashing relayer with the weight of rewarding relayer
 		if call_info.is_receive_messages_proof_call() {
 			post_info_weight = post_info_weight.saturating_sub(
-				<R as RelayersConfig>::WeightInfo::extra_weight_of_successful_receive_messages_proof_call(),
+				<R as RelayersConfig<C::BridgeRelayersPalletInstance>>::WeightInfo::extra_weight_of_successful_receive_messages_proof_call(),
 			);
 		}
 
@@ -277,7 +277,7 @@ where
 impl<R, C, LaneId> SignedExtension for BridgeRelayersSignedExtension<R, C, LaneId>
 where
 	Self: 'static + Send + Sync,
-	R: RelayersConfig<LaneId = LaneId>
+	R: RelayersConfig<C::BridgeRelayersPalletInstance, LaneId = LaneId>
 		+ BridgeMessagesConfig<C::BridgeMessagesPalletInstance, LaneId = LaneId>
 		+ TransactionPaymentConfig,
 	C: ExtensionConfig<Runtime = R, LaneId = LaneId>,
@@ -320,8 +320,8 @@ where
 		};
 
 		// we only boost priority if relayer has staked required balance
-		if !RelayersPallet::<R>::is_registration_active(who) {
-			return Ok(Default::default())
+		if !RelayersPallet::<R, C::BridgeRelayersPalletInstance>::is_registration_active(who) {
+			return Ok(Default::default());
 		}
 
 		// compute priority boost
@@ -381,7 +381,11 @@ where
 		match call_result {
 			RelayerAccountAction::None => (),
 			RelayerAccountAction::Reward(relayer, reward_account, reward) => {
-				RelayersPallet::<R>::register_relayer_reward(reward_account, &relayer, reward);
+				RelayersPallet::<R, C::BridgeRelayersPalletInstance>::register_relayer_reward(
+					reward_account,
+					&relayer,
+					reward,
+				);
 
 				log::trace!(
 					target: LOG_TARGET,
@@ -393,7 +397,7 @@ where
 				);
 			},
 			RelayerAccountAction::Slash(relayer, slash_account) =>
-				RelayersPallet::<R>::slash_and_deregister(
+				RelayersPallet::<R, C::BridgeRelayersPalletInstance>::slash_and_deregister(
 					&relayer,
 					ExplicitOrAccountParams::Params(slash_account),
 				),