fix clippy issues (#1332)

bridges/relays/lib-substrate-relay/src/helpers.rs

@@ -23,7 +23,7 @@ pub fn token_price_metric(token_id: &str) -> Result<FloatJsonValueMetric, Promet
 	FloatJsonValueMetric::new(
 		format!("https://api.coingecko.com/api/v3/simple/price?ids={}&vs_currencies=btc", token_id),
 		format!("$.{}.btc", token_id),
-		format!("{}_to_base_conversion_rate", token_id.replace("-", "_")),
+		format!("{}_to_base_conversion_rate", token_id.replace('-', "_")),
 		format!("Rate used to convert from {} to some BASE tokens", token_id.to_uppercase()),
 	)
 }

bridges/relays/lib-substrate-relay/src/messages_source.rs

@@ -334,6 +334,7 @@ where
 }
 
 /// Make messages delivery proof transaction from given proof.
+#[allow(clippy::too_many_arguments)]
 fn make_messages_delivery_proof_transaction<P: SubstrateMessageLane>(
 	spec_version: u32,
 	transaction_version: u32,
@@ -443,7 +444,7 @@ where
 				peer_client.header_by_number(peer_on_self_best_finalized_id.0).await?;
 			HeaderId(peer_on_self_best_finalized_id.0, actual_peer_on_self_best_finalized.hash())
 		},
-		None => peer_on_self_best_finalized_id.clone(),
+		None => peer_on_self_best_finalized_id,
 	};
 
 	Ok(ClientState {