chore: Create Release build CI action

This builds VisionCamera Example as an .apk and uploads it to the GitHub release artefact.

.github/workflows/build-android-release.yml

@@ -0,0 +1,49 @@
+name: Build Android (Release)
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  build_release:
+    name: Build Android Example App (release)
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup JDK 17
+        uses: actions/setup-java@v4
+        with:
+          distribution: "zulu"
+          java-version: 17
+          java-package: jdk
+
+      - uses: oven-sh/setup-bun@v2
+
+      - name: Install npm dependencies (bun)
+        run: bun install
+
+      - name: Restore Gradle cache
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.gradle/caches
+          key: ${{ runner.os }}-with-fps-gradle-${{ hashFiles('**/*.gradle*', '**/gradle-wrapper.properties') }}
+          restore-keys: |
+            ${{ runner.os }}-with-fps-gradle-
+      - name: Run Gradle Build for example/android/
+        run: cd example/android && ./gradlew assembleRelease --no-daemon --build-cache
+
+      - name: Upload APK to Release
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ github.event.release.upload_url }}
+          asset_path: example/android/app/build/outputs/apk/release/app-release.apk
+          asset_name: "VisionCameraExample-${{ github.event.release.tag_name }}.apk"
+          asset_content_type: application/vnd.android.package-archive
+
+      # Gradle cache doesn't like daemons
+      - name: Stop Gradle Daemon
+        run: cd example/android && ./gradlew --stop