Fix vTaskDelay syntax error

firmware/esp32/main/main.cpp

@@ -7,7 +7,7 @@
 #include "esp_task_wdt.h"
 #include "wifi.hpp"
 
-#define WATCHDOG_KEEPALIVE_TICKS pdMS_TO_TICKS(8000)
+#define WATCHDOG_KEEPALIVE_MS 8000
 
 extern EventGroupHandle_t connectivity_event_group;
 extern EventBits_t bits = xEventGroupGetBits(connectivity_event_group);
@@ -27,8 +27,6 @@ static void watchdogTask(void *pvParameters) {
 
     ESP_ERROR_CHECK(esp_task_wdt_add(NULL));
 
-    const TickType_t keepAlivePeriod = pdMS_TO_TICKS(WATCHDOG_KEEPALIVE_TICKS);
-
     for(;;) {
         if (criticalErrorFlag) {
             ESP_LOGE(TAG, "Critical error flag raised. Rebooting.");
@@ -38,7 +36,7 @@ static void watchdogTask(void *pvParameters) {
         ESP_ERROR_CHECK(esp_task_wdt_reset());
         ESP_LOGV(TAG, "WDT reset");
 
-        vTaskDelay(keepAlivePeriod);
+        vTaskDelay(pdMS_TO_TICKS(WATCHDOG_KEEPALIVE_MS));
     }
 }