v1.16: Use QUIC Retry packets during handshake (backport of #31802) (#…

…32000)

Use QUIC Retry packets during handshake (#31802)

Have the Quic server send a Retry packet to verify client control of the source IP

(cherry picked from commit 36222a4)

Co-authored-by: ryleung-solana <91908731+ryleung-solana@users.noreply.github.com>

streamer/src/quic.rs

@@ -71,6 +71,7 @@ pub(crate) fn configure_server(
     server_tls_config.alpn_protocols = vec![ALPN_TPU_PROTOCOL_ID.to_vec()];
 
     let mut server_config = ServerConfig::with_crypto(Arc::new(server_tls_config));
+    server_config.use_retry(true);
     let config = Arc::get_mut(&mut server_config.transport).unwrap();
 
     // QUIC_MAX_CONCURRENT_STREAMS doubled, which was found to improve reliability