Fix the broken build related to arduino/arduino-cli#758

Author: okalachev

Makefile

@@ -14,8 +14,10 @@ monitor:
 	arduino-cli monitor -p "$(PORT)" -c baudrate=115200
 
 dependencies:
+	arduino-cli config add board_manager.additional_urls https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json
+	arduino-cli config add library.enable_unsafe_install true
 	arduino-cli core update-index
-	arduino-cli core install esp32:esp32
+	arduino-cli core install esp32:esp32@2.0.7
 	arduino-cli lib install "Bolder Flight Systems SBUS"@1.0.1
 	arduino-cli lib install --git-url https://github.com/okalachev/MPU9250.git