Made connection cache configurable. (#23783) (#23812)

Added command-line argument tpu-use-quic argument.
Changed connection cache to return different connections based on the config.

(cherry picked from commit ae76fe2bd7)

Co-authored-by: Lijun Wang <83639177+lijunwangs@users.noreply.github.com>

banks-server/src/banks_server.rs

@@ -24,7 +24,7 @@ use {
         transaction::{self, SanitizedTransaction, Transaction},
     },
     solana_send_transaction_service::{
-        send_transaction_service::{SendTransactionService, TransactionInfo},
+        send_transaction_service::{SendTransactionService, TransactionInfo, DEFAULT_TPU_USE_QUIC},
         tpu_info::NullTpuInfo,
     },
     std::{
@@ -399,6 +399,7 @@ pub async fn start_tcp_server(
                 receiver,
                 5_000,
                 0,
+                DEFAULT_TPU_USE_QUIC,
             );
 
             let server = BanksServer::new(