Release build with Java 11

Author: hannesa2

.github/workflows/Android-CI-release.yml

@@ -26,7 +26,7 @@ jobs:
         uses: actions/setup-java@v2
         with:
           distribution: 'adopt'
-          java-version: 8
+          java-version: 11
 
       - name: Install Android SDK
         uses: malinskiy/action-android/install-sdk@release/0.1.2