chore: Do not use expect

--- don't change below this line ---
ENG-4063 Took 57 minutes


Took 17 seconds

Took 45 seconds

src/encoding/evm/swap_encoder/mod.rs

@@ -9,6 +9,7 @@ use tycho_core::dto::Chain;
 
 use crate::encoding::evm::swap_encoder::registry::{Config, SwapEncoderRegistry};
 
+// TODO: init this at the higher level at some point
 lazy_static! {
     pub static ref SWAP_ENCODER_REGISTRY: RwLock<SwapEncoderRegistry> = {
         let config = Config::from_file("src/encoding/config/executor_addresses.json")