Add release workflow

.github/workflows/ci.yml

@@ -0,0 +1,38 @@
+name : Bookify CI
+
+
+on:
+  push:
+    branches:
+    - release
+
+jobs:
+  releaseApp:
+
+    runs-on : ubuntu-latest
+    steps:
+
+    -uses : actions/checkout@v3
+    -uses : actions/checkout@v2
+
+    with:
+      java-version : 12.x
+
+    -uses: subosito/flutter-action@v2
+    with:
+      channel : 'stable'
+      flutter-version : '3.13.0'
+
+    -name: Get dependencies for flutter project
+     run : flutter pub get
+
+    -run : flutter analyze .
+
+    -name: Build APK for release 
+     run : flutter build apk --release
+
+
+    -uses: actions/upload-artifact@v3
+     with:
+      name: release-apk
+      build: build/app/outputs/apk/release/app-release.apk