Update Pixel Wheels to 0.21.0 (22)

metadata/com.agateau.tinywheels.android.yml

@@ -256,8 +256,26 @@ Builds:
       - make -C .. assets
       - make -C .. packer
 
+  - versionName: 0.21.0
+    versionCode: 22
+    commit: 6cb696cbf1f7f1134fc5b256e4a32a821a3ac415
+    subdir: android
+    sudo:
+      - apt-get update || apt-get update
+      - apt-get install -y imagemagick-6.q16
+    gradle:
+      - itchio
+    prebuild: sed -i -e 's#./gradlew#gradle#' ../Makefile
+    scandelete:
+      - android/libs/
+    build:
+      - pip3 install --user -r ../requirements.txt
+      - gradle tools:dist -b ../build.gradle
+      - make -C .. assets
+      - make -C .. packer
+
 AutoUpdateMode: Version
 UpdateCheckMode: Tags ^[0-9.]*$
 UpdateCheckData: version.properties|VERSION_CODE=(.*)|.|VERSION=(.*)
-CurrentVersion: 0.20.0
-CurrentVersionCode: 21
+CurrentVersion: 0.21.0
+CurrentVersionCode: 22