chore: Prepare for Rust edition bump to 2024 (without autofix) (#27791)

Successor to #27779 - in this PR I've applied changes manually, without
futzing with if let lifetimes at all.

Release Notes:

- N/A

crates/aws_http_client/src/aws_http_client.rs

@@ -32,7 +32,7 @@ impl AwsConnector for AwsHttpConnector {
         let req = match request.try_into_http1x() {
             Ok(req) => req,
             Err(err) => {
-                return HttpConnectorFuture::ready(Err(ConnectorError::other(err.into(), None)))
+                return HttpConnectorFuture::ready(Err(ConnectorError::other(err.into(), None)));
             }
         };