Replace deprecatated hyper::body::to_bytes usage

The hyper::body::to_bytes function has been deprecated in favor of a
different construct. Switch over.

Cargo.toml

@@ -67,3 +67,5 @@ _num_bigint_unused = { package = "num-bigint", version = "0.4.2" }
 _proc_macro2_unused = { package = "proc-macro2", version = "1.0.60" }
 # error: pasting "RUST_VERSION_OPENSSL_" and "(" does not give a valid preprocessing token
 _openssl_unused = {package = "openssl", version = "0.10.35"}
+# error[E0599]: `Body` is not an iterator
+_http_body_unused = {package = "http-body", version = "0.4.6"}

src/client.rs

@@ -1,4 +1,4 @@
-// Copyright (C) 2019-2023 The apca Developers
+// Copyright (C) 2019-2024 The apca Developers
 // SPDX-License-Identifier: GPL-3.0-or-later
 
 use std::borrow::Cow;
@@ -15,8 +15,8 @@ use http::Request;
 use http::Response;
 use http_endpoint::Endpoint;
 
-use hyper::body::to_bytes;
 use hyper::body::Bytes;
+use hyper::body::HttpBody as _;
 use hyper::client::Builder as HttpClientBuilder;
 use hyper::client::HttpConnector;
 use hyper::Body;
@@ -219,7 +219,7 @@ impl Client {
     //       to cause trouble: when we receive, for example, the
     //       list of all orders it now needs to be stored in memory
     //       in its entirety. That may blow things.
-    to_bytes(response).await
+    Ok(response.collect().await?.to_bytes())
   }
 
   /// Retrieve the HTTP body, possible uncompressing it if it was gzip