Raise compileSdkVersion to API level 33 (Android Tiramisu)

[alwa]

Feature Request

Maybe not a feature request, but not a bug either...

Fixed here: #895

Motivation

It is valuable to follow closely the new Android APIs to avoid unpleasant surprises in the future if/when backwards compatibility is broken

Description

Raise compileSdk level to 33 and other dependencies that implicitly depend on the Android API versions (such as test dependency Robolectric)

Alternatives or Workarounds

No alternative but to sit and wait for problems