ci(release): add workflow to build and upload binaries on GitHub release

Signed-off-by: Alexander Knott <alexander.knott@r-kom.de>

Author: alexanderknott

.github/workflows/release.yml

@@ -0,0 +1,29 @@
+name: Build & Publish Release Asset
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  build-and-upload:
+    runs-on: macos-latest
+
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v4
+
+      - name: Install Rust (stable)
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+
+      - name: Build release binary
+        run: cargo build --release
+
+      - name: Upload binary to GitHub Release
+        uses: actions/upload-release-asset@v1
+        with:
+          upload_url: ${{ github.event.release.upload_url }}
+          asset_path: target/release/sapphire
+          asset_name: sapphire-${{ github.event.release.tag_name }}-macos-arm64
+          asset_content_type: application/octet-stream