feat: Add GRPC TLS support (#6374)

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

src/test/jtx/impl/JSONRPCClient.cpp

@@ -48,7 +48,7 @@ class JSONRPCClient : public AbstractClient
                 continue;
             ParsedPort pp;
             parse_Port(pp, cfg[name], log);
-            if (pp.protocol.count("http") == 0)
+            if (not pp.protocol.contains("http"))
                 continue;
             using namespace boost::asio::ip;
             if (pp.ip && pp.ip->is_unspecified())
@@ -91,12 +91,6 @@ public:
         stream_.connect(ep_);
     }
 
-    ~JSONRPCClient() override
-    {
-        // stream_.shutdown(boost::asio::ip::tcp::socket::shutdown_both);
-        // stream_.close();
-    }
-
     /*
         Return value is an Object type with up to three keys:
             status