Set ANDROID_HOME/NDK_HOME/NDK_VERSION at the job level and add a step that installs the NDK via sdkmanager when missing, so the Android init step no longer fails when the builder image lacks NDK_HOME.
Set ANDROID_HOME/NDK_HOME/NDK_VERSION at the job level and add a step that installs the NDK via sdkmanager when missing, so the Android init step no longer fails when the builder image lacks NDK_HOME.