Fix clippy, update old dependencies

tests/coordinator/src/lib.rs

@@ -16,8 +16,9 @@ use zeroize::Zeroizing;
 
 use ciphersuite::{
   group::{ff::PrimeField, GroupEncoding},
-  Ciphersuite, Ristretto,
+  Ciphersuite,
 };
+use dalek_ff_group::Ristretto;
 use embedwards25519::Embedwards25519;
 use secq256k1::Secq256k1;
 

tests/coordinator/src/tests/batch.rs

@@ -10,7 +10,9 @@ use blake2::{
   digest::{consts::U32, Digest},
   Blake2b,
 };
-use ciphersuite::{group::GroupEncoding, Ciphersuite, Ristretto, Secp256k1};
+use ciphersuite::{group::GroupEncoding, Ciphersuite}
+use ciphersuite_kp256::Secp256k1;
+use dalek_ff_group::Ristretto;
 use dkg::Participant;
 
 use scale::Encode;

tests/coordinator/src/tests/key_gen.rs

@@ -5,8 +5,10 @@ use rand_core::OsRng;
 
 use ciphersuite::{
   group::{ff::Field, GroupEncoding},
-  Ciphersuite, Ristretto, Secp256k1,
+  Ciphersuite,
 };
+use ciphersuite_kp256::Secq256k1;
+use dalek_ff_group::Ristretto;
 use dkg::Participant;
 
 use serai_client::{