fix: use ESP32Servo library compatible with current core

platformio.ini

@@ -12,4 +12,4 @@
 platform = espressif32
 board = esp32doit-devkit-v1
 framework = arduino
-lib_deps = roboticsbrno/ServoESP32@^1.0.3
+lib_deps = madhephaestus/ESP32Servo@^3.2.1

src/main.cpp

@@ -1,5 +1,5 @@
 #include <Arduino.h>
-#include <Servo.h>
+#include <ESP32Servo.h>
 
 static const int servoPin = 4;