fixed beta clippy: lints + updated cosmwasm to 1.4

mixnode/src/commands/mod.rs

@@ -152,7 +152,6 @@ fn try_load_current_config(id: &str) -> Result<Config, MixnodeError> {
 #[cfg(test)]
 mod tests {
     use super::*;
-    use clap::CommandFactory;
 
     #[test]
     fn verify_cli() {

mixnode/src/commands/sign.rs

@@ -10,7 +10,7 @@ use nym_bin_common::output_format::OutputFormat;
 use nym_crypto::asymmetric::identity;
 use nym_types::helpers::ConsoleSigningOutput;
 use nym_validator_client::nyxd;
-use std::convert::TryFrom;
+
 
 use super::version_check;