Fix header deprecation

Author: me-no-dev

Diff for: cores/esp32/Esp.cpp

@@ -20,7 +20,7 @@
 #include "Arduino.h"
 #include "Esp.h"
 #include "rom/spi_flash.h"
-#include "esp_deep_sleep.h"
+#include "esp_sleep.h"
 #include "esp_spi_flash.h"
 #include <memory>
 #include <soc/soc.h>