Make ChainConfig work

Author: snawaz

magicblock-committor-service/src/tasks/account_fetcher.rs

@@ -10,6 +10,12 @@ pub struct AccountFetcher {
     rpc_client: RpcClient,
 }
 
+impl Default for AccountFetcher {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl AccountFetcher {
     pub fn new() -> Self {
         use crate::{config::ChainConfig, ComputeBudgetConfig};
@@ -18,7 +24,7 @@ impl AccountFetcher {
         let chain_config =
             ChainConfig::local(ComputeBudgetConfig::new(1_000_000));
 
-        //#[cfg(not(feature = "dev-context-only-utils"))]
+        #[cfg(not(feature = "dev-context-only-utils"))]
         let chain_config = ChainConfig {
             rpc_uri: magicblock_config::MagicBlockConfig::parse_config()
                 .config