Update github actions

.github/workflows/android.yml

@@ -1,17 +1,26 @@
 name: Android CI
 
-on: [push]
+on:
+  push:
+    branches: [ "master" ]
+  pull_request:
+    branches: [ "master" ]
 
 jobs:
   build:
 
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2.0.0
-    - name: set up JDK 1.8
-      uses: actions/setup-java@v1.3.0
-      with:
-        java-version: 1.8
-    - name: Build with Gradle
-      run: ./gradlew build
+      - uses: actions/checkout@v4
+      - name: Set up JDK 17
+        uses: actions/setup-java@v4
+        with:
+          java-version: '17'
+          distribution: 'temurin'
+          cache: gradle
+
+      - name: Grant execute permission for gradlew
+        run: chmod +x gradlew
+      - name: Build with Gradle
+        run: ./gradlew build