feat: added interrupt for high level

include/zh_pcf8574.h

@@ -73,6 +73,7 @@ extern "C"
     {
         uint8_t i2c_address; // The i2c address of PCF8574 expander that caused the interrupt.
         uint8_t gpio_number; // The GPIO that caused the interrupt.
+        bool gpio_level;     // The GPIO level that caused the interrupt.
     } zh_pcf8574_event_on_isr_t;
 
     /**