arduino-libraries/ArduinoIoTCloud 0.12.0 on GitHub

Use sketch compilation CI actions from their new dedicated repositories (#207)
Support ESP32 patch (#211)
Remove api symlink deletion step from CI workflow (#213)
Use default branch of ArduinoCore-API in CI workflow (#214)
Add ESP32 board to "Compile Examples" CI workflow (#217)
Pin Arduino CLI version used in CI to 0.13.0 (#222)
Pin esp8266:esp8266 platform version to 2.5.0 in CI builds (#223)
New Callbacks example + Added Nano 33 IoT to boards list in examples comment (#224)
Offload IoT Cloud connection to Nina module (#208)
Revert "Pin Arduino CLI version used in CI to 0.13.0 (#226)
Reversion: Only use BearSSL offload for Uno WiFi Rev. 2 (#227)