This does not change behavior, but bumping to Focal now means it doesn't have to be done later when Bionic is no longer used and EOL.
Depends is currently built twice for the Android build. For example, the same task building it twice: * https://cirrus-ci.com/task/6673185279049728?logs=ci#L3418 (aarch64-linux-android) * https://cirrus-ci.com/task/6673185279049728?logs=ci#L3422 (x86_64-pc-linux-gnu, 4 lines later)