Update CI

.github/workflows/android.yml

@@ -36,8 +36,9 @@ jobs:
           rm ./app/src/main/res/values/curfirmwareversion.xml
           cp ./app/special/curfirmwareversion.xml ./app/src/main/res/values/
       - name: set up JDK 1.8
-        uses: actions/setup-java@master
+        uses: actions/setup-java@v2
         with:
-          java-version: 1.8
+          distribution: "adopt"
+          java-version: 16
       - name: Unit tests
         run: bash ./gradlew test --stacktrace