fix(ble): matches the function signature with const u8*

Author: SuGlider

libraries/BLE/src/BLECharacteristic.cpp

@@ -384,7 +384,7 @@ void BLECharacteristic::setValue(uint32_t data32) {
 }  // setValue
 
 void BLECharacteristic::setValue(int data32) {
-  setValue(reinterpret_cast<uint8_t *>(&data32), sizeof(data32));
+  setValue(reinterpret_cast<const uint8_t *>(&data32), sizeof(data32));
 }  // setValue
 
 void BLECharacteristic::setValue(float data32) {