CI: Fix clippy issues

Author: tvpeter

src/handlers.rs

@@ -1156,6 +1156,7 @@ pub fn handle_wallets_subcommand(datadir: &Path, pretty: bool) -> Result<String,
             .wallets
             .iter()
             .map(|(name, wallet_config)| {
+                #[allow(unused_mut)]
                 let mut wallet_json = json!({
                     "name": name,
                     "network": wallet_config.network,

src/utils.rs

@@ -187,7 +187,7 @@ pub(crate) fn new_blockchain_client(
         }
         #[cfg(feature = "esplora")]
         ClientType::Esplora => {
-            let client = bdk_esplora::esplora_client::Builder::new(&url).build_async()?;
+            let client = bdk_esplora::esplora_client::Builder::new(url).build_async()?;
             BlockchainClient::Esplora {
                 client: Box::new(client),
                 parallel_requests: wallet_opts.parallel_requests,