Get all processors to compile again

Requires splitting `serai-cosign` into `serai-cosign` and `serai-cosign-types`
so the processor don't require `serai-client/serai` (not correct yet).

processor/monero/src/scheduler.rs

@@ -10,7 +10,7 @@ use dalek_ff_group::Ed25519;
 use monero_wallet::rpc::{FeeRate, RpcError};
 
 use serai_client::{
-  primitives::{ExternalCoin, Amount},
+  primitives::{coin::ExternalCoin, balance::Amount},
   networks::monero::Address,
 };