build: publish Android App Bundle (aab) instead of APK

Change-Id: I54965635cc66e0fd10ffe99cd8d41a78a4ef35e6

compile.sh

@@ -54,7 +54,7 @@ if [[ $DAEMON_ONLY -eq 0 ]]; then
         echo "Building with Firebase support"
     fi
     if [[ $RELEASE -eq 1 ]]; then
-        cd $ANDROID_APP_DIR && ./gradlew $GRADLE_PROPERTIES assembleRelease
+        cd $ANDROID_APP_DIR && ./gradlew $GRADLE_PROPERTIES assembleRelease bundleRelease
     else
         cd $ANDROID_APP_DIR && ./gradlew $GRADLE_PROPERTIES assembleDebug
     fi

fastlane/Fastfile

@@ -23,7 +23,7 @@ platform :android do
   desc "Submit a new Build to the Google Play Store"
   lane :playstore do |options|
     gradle(
-      task: "assemble",
+      task: "bundle",
       flavor: "withFirebase",
       build_type: "Release",
       print_command: false,
@@ -46,7 +46,7 @@ platform :android do
   desc "Submit a new Beta Build to the Play Store Beta channel"
   lane :beta do |options|
     gradle(
-      task: "assemble",
+      task: "bundle",
       flavor: "withFirebase",
       build_type: "Release",
       print_command: false,
@@ -69,7 +69,7 @@ platform :android do
   desc "Submit a new Build to the Play Store"
   lane :production do |options|
     gradle(
-      task: "assemble",
+      task: "bundle",
       flavor: "withFirebase",
       build_type: "Release",
       print_command: false,