Bump warp and begin axum migration (#9001)

- Bump `warp` to 0.4. This unifies `warp` and `axum` onto the same `http`, `hyper`, `h2`, `rustls`, etc versions.
- Create `axum_utils` which contain common functions and types
- Begins migration of all HTTP API servers from warp to axum


Co-Authored-By: Mac L <mjladson@pm.me>

beacon_node/src/config.rs

@@ -1,4 +1,5 @@
 use account_utils::{STDIN_INPUTS_FLAG, read_input_from_user};
+use axum_utils::tls::TlsConfig;
 use beacon_chain::chain_config::{
     DEFAULT_PREPARE_PAYLOAD_LOOKAHEAD_FACTOR, INVALID_HOLESKY_BLOCK_ROOT,
 };
@@ -12,7 +13,6 @@ use client::{ClientConfig, ClientGenesis};
 use directory::{DEFAULT_BEACON_NODE_DIR, DEFAULT_NETWORK_DIR, DEFAULT_ROOT_DIR};
 use environment::RuntimeContext;
 use execution_layer::DEFAULT_JWT_FILE;
-use http_api::TlsConfig;
 use lighthouse_network::{Enr, Multiaddr, NetworkConfig, PeerIdSerialized};
 use network_utils::listen_addr::ListenAddress;
 use sensitive_url::SensitiveUrl;

beacon_node/src/lib.rs

@@ -139,6 +139,7 @@ impl<E: EthSpec> ProductionBeaconNode<E> {
             .notifier()?
             .http_metrics_config(client_config.http_metrics.clone())
             .build()
+            .await
             .map(Self)
     }