ANDROID_HOME is deprecated

[plastiv]

Google has changed ANDROID_HOME to ANDROID_SDK_ROOT https://developer.android.com/studio/command-line/variables#envar and at least brew users are encouraged to set the former.

https://github.com/Homebrew/homebrew-cask/blob/ff2606786cd5e4249fd7b53d1a388f016b9fcb42/Casks/android-sdk.rb#L38

Currently, ANDROID_HOME is forced by commander.

commander/android/src/main/kotlin/com/gojuno/commander/android/Adb.kt

Line 14 in 05d1714

val androidHome: String by lazy { requireNotNull(System.getenv("ANDROID_HOME")) { "Please specify ANDROID_HOME env variable" } }