FIX "missing initializer for member"

src/cli.cpp

@@ -83,7 +83,7 @@ static void cli_worker_task(void *pvParameters) {
         .parity    = UART_PARITY_DISABLE,
         .stop_bits = UART_STOP_BITS_1,
         .flow_ctrl = UART_HW_FLOWCTRL_DISABLE,
-        .source_clk = UART_SCLK_DEFAULT,
+        .source_clk = UART_SCLK_DEFAULT
     };
 
     // Install UART driver without using resource-heavy interrupt queues