update android CI workflow java version

enable on all branches

.github/workflows/android.yml

@@ -2,9 +2,7 @@ name: Android CI
 
 on:
   push:
-    branches: [ master ]
   pull_request:
-    branches: [ master ]
 
 jobs:
   build:
@@ -13,9 +11,9 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
-    - name: set up JDK 1.8
-      uses: actions/setup-java@v1
+    - uses: actions/setup-java@v2
       with:
-        java-version: 1.8
+        distribution: 'adopt'
+        java-version: '11'
     - name: Build with Gradle
       run: ./gradlew build