ci: android release apk build via github actions

.github/workflows/android-release.yml

@@ -0,0 +1,29 @@
+name: android-release
+
+on:
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: npm
+      - uses: actions/setup-java@v4
+        with:
+          distribution: temurin
+          java-version: 17
+      - run: npm ci
+      - run: npx expo prebuild --platform android --no-install
+      - name: build release apk
+        run: |
+          cd android
+          chmod +x gradlew
+          ./gradlew assembleRelease
+      - uses: actions/upload-artifact@v4
+        with:
+          name: AniSav-android
+          path: android/app/build/outputs/apk/release/app-release.apk