Update Mill to 4.2.0 (4019)

metadata/com.calcitem.sanmill.yml

@@ -2804,8 +2804,42 @@ Builds:
       - $$flutter$$/bin/flutter build apk --flavor fdroid --release
     ndk: r25b
 
+  - versionName: 4.2.0
+    versionCode: 4019
+    commit: 091330118d64a552286d0cf1ab0f68f0f9ad1b1b
+    subdir: src/ui/flutter_app
+    output: build/app/outputs/flutter-apk/app-fdroid-release.apk
+    srclibs:
+      - flutter@stable
+    rm:
+      - src/test
+      - src/ui/flutter_app/ios
+      - src/ui/flutter_app/linux
+      - src/ui/flutter_app/macos
+      - src/ui/flutter_app/windows
+      - src/ui/flutter_app/test
+      - src/ui/qt
+      - tests
+    prebuild:
+      - export FLUTTER_VERSION=$(sed -n -E "s/.*flutter-version:\s'(.*)'/\1/p" ../../../.github/workflows/flutter.yml
+        | head -n 1)
+      - pushd $$flutter$$
+      - git checkout -f $FLUTTER_VERSION
+      - popd
+      - mv android/app/build.gradle_fdroid android/app/build.gradle
+      - export PUB_CACHE=$(pwd)/.pub-cache
+      - export PATH=$$flutter$$/bin:$PATH
+      - cd ../../..
+      - ./flutter-init.sh
+    scandelete:
+      - src/ui/flutter_app/.pub-cache
+    build:
+      - export PUB_CACHE=$(pwd)/.pub-cache
+      - $$flutter$$/bin/flutter build apk --flavor fdroid --release
+    ndk: r25b
+
 AutoUpdateMode: Version
 UpdateCheckMode: Tags ^v.*$
 UpdateCheckData: src/ui/flutter_app/pubspec.yaml|version:\s.+\+(\d+)|.|version:\s(.+)\+
-CurrentVersion: 4.1.0
-CurrentVersionCode: 3942
+CurrentVersion: 4.2.0
+CurrentVersionCode: 4019