remove aws-lc-rs dep and fix storage_broker tls (#9613)

It seems the ecosystem is not so keen on moving to aws-lc-rs as it's
build setup is more complicated than ring (requiring cmake).

Eventually I expect the ecosystem should pivot to
https://github.com/ctz/graviola/tree/main/rustls-graviola as it
stabilises (it has a very simply build step and license), but for now
let's try not have a headache of juggling two crypto libs.

I also noticed that tonic will just fail with tls without a default
provider, so I added some defensive code for that.

Author: conradludgate

Cargo.lock

@@ -143,7 +143,7 @@ reqwest-retry = "0.5"
 routerify = "3"
 rpds = "0.13"
 rustc-hash = "1.1.0"
-rustls = "0.23"
+rustls = { version = "0.23.16", default-features = false }
 rustls-pemfile = "2"
 scopeguard = "1.1"
 sysinfo = "0.29.2"
@@ -174,7 +174,7 @@ tokio = { version = "1.17", features = ["macros"] }
 tokio-epoll-uring = { git = "https://github.com/neondatabase/tokio-epoll-uring.git" , branch = "main" }
 tokio-io-timeout = "1.2.0"
 tokio-postgres-rustls = "0.12.0"
-tokio-rustls = "0.26"
+tokio-rustls = { version = "0.26.0", default-features = false, features = ["tls12", "ring"]}
 tokio-stream = "0.1"
 tokio-tar = "0.3"
 tokio-util = { version = "0.7.10", features = ["io", "rt"] }

Cargo.toml

@@ -2,7 +2,7 @@
 use once_cell::sync::Lazy;
 use postgres_backend::{AuthType, Handler, PostgresBackend, QueryError};
 use pq_proto::{BeMessage, RowDescriptor};
-use rustls::crypto::aws_lc_rs;
+use rustls::crypto::ring;
 use std::io::Cursor;
 use std::sync::Arc;
 use tokio::io::{AsyncRead, AsyncWrite};
@@ -94,7 +94,7 @@ async fn simple_select_ssl() {
     let (client_sock, server_sock) = make_tcp_pair().await;
 
     let server_cfg =
-        rustls::ServerConfig::builder_with_provider(Arc::new(aws_lc_rs::default_provider()))
+        rustls::ServerConfig::builder_with_provider(Arc::new(ring::default_provider()))
             .with_safe_default_protocol_versions()
             .expect("aws_lc_rs should support the default protocol versions")
             .with_no_client_auth()
@@ -110,7 +110,7 @@ async fn simple_select_ssl() {
     });
 
     let client_cfg =
-        rustls::ClientConfig::builder_with_provider(Arc::new(aws_lc_rs::default_provider()))
+        rustls::ClientConfig::builder_with_provider(Arc::new(ring::default_provider()))
             .with_safe_default_protocol_versions()
             .expect("aws_lc_rs should support the default protocol versions")
             .with_root_certificates({