Improve CI build tasks

.gitlab-ci.yml

 image: cirrusci/flutter:latest
 
 stages:
+  - test
   - update
   - build-debug
   - build-release
   - deploy
 
+tests:
+  stage: test
+  script:
+    - flutter test
+  interruptible: true
+
 update:
   stage: update
   script:
@@ -27,6 +34,8 @@ android:build-debug:
     - echo keyAlias=$ANDROID_DEBUG_KEY_ALIAS >> android/key.properties
     - echo keyPassword=$ANDROID_DEBUG_KEY_PASSWORD >> android/key.properties
     # build flutter app
+    - flutter packages get
+    - flutter clean
     - flutter build apk --debug
     # prepare artifact
     - find . -name "*.apk" # where is my apk?
@@ -54,7 +63,9 @@ android:build-release:
     - echo keyAlias=$ANDROID_KEY_ALIAS >> android/key.properties
     - echo keyPassword=$ANDROID_KEY_PASSWORD >> android/key.properties
     # build flutter app
-    - flutter build apk
+    - flutter packages get
+    - flutter clean
+    - flutter build apk --release
     # prepare artifact
     - find . -name "*.apk" # where is my apk?
   artifacts:

android/gradle.properties

 org.gradle.jvmargs=-Xmx1536M
 android.useAndroidX=true
 android.enableJetifier=true
-app.versionName=1.0.0
-app.versionCode=1
+app.versionName=1.0.1
+app.versionCode=2