Update Android to new dependency repo (#11690)

.github/workflows/android.yml

@@ -21,15 +21,13 @@ on:
 
 jobs:
   build:
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     steps:
     - uses: actions/checkout@v2
-    - name: Set up JDK 1.8
-      uses: actions/setup-java@v1
-      with:
-        java-version: 1.8
     - name: Install deps
-      run: sudo apt-get update; sudo apt-get install -y --no-install-recommends gettext
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y --no-install-recommends gettext openjdk-11-jdk-headless
     - name: Build with Gradle
       run: cd android; ./gradlew assemblerelease
     - name: Save armeabi artifact