ci: temporarily restore old release workflow

.github/workflows/release-build.yml

@@ -0,0 +1,50 @@
+name: "Release Build"
+
+on:
+  push:
+    tags:
+      - "v*"
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Set env
+        run: echo "RELEASE_VERSION=${GITHUB_REF#refs/*/}" >> $GITHUB_ENV
+      - name: Set up JDK 12
+        uses: actions/setup-java@v3
+        with:
+          java-version: "12"
+          distribution: "zulu"
+      - uses: subosito/flutter-action@v2
+        with:
+          channel: "stable"
+      - name: Set up Flutter
+        run: flutter pub get
+      - name: Generate files with Builder
+        run: flutter packages pub run build_runner build --delete-conflicting-outputs
+      - name: Build with Flutter
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          SIGNING_KEY_ALIAS: ${{ secrets.SIGNING_KEY_ALIAS }}
+          SIGNING_KEY_PASSWORD: ${{ secrets.SIGNING_KEY_PASSWORD }}
+          SIGNING_STORE_PASSWORD: ${{ secrets.SIGNING_KEYSTORE_PASSWORD }}
+        run: flutter build apk
+      - name: Sign APK
+        id: sign_apk
+        uses: ilharp/sign-android-release@v1
+        with:
+          releaseDir: build/app/outputs/apk/release
+          signingKey: ${{ secrets.SIGNING_KEYSTORE }}
+          keyStorePassword: ${{ secrets.SIGNING_KEYSTORE_PASSWORD }}
+          keyAlias: ${{ secrets.SIGNING_KEY_ALIAS }}
+          keyPassword: ${{ secrets.SIGNING_KEY_PASSWORD }}
+      - name: Add version to APK
+        run: mv ${{steps.sign_apk.outputs.signedFile}} revanced-manager-${{ env.RELEASE_VERSION }}.apk
+      - name: Publish release APK
+        uses: "marvinpinto/action-automatic-releases@latest"
+        with:
+          repo_token: "${{ secrets.GITHUB_TOKEN }}"
+          prerelease: false
+          files: revanced-manager-${{ env.RELEASE_VERSION }}.apk