Add release workflow (#402)

.github/workflows/release.yaml

@@ -0,0 +1,23 @@
+name: release
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+concurrency:
+  group: release-${{ github.ref }}
+  cancel-in-progress: ${{ github.ref != 'refs/heads/main' }}
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    environment: ${{ github.ref == 'refs/heads/main' && 'release' || 'test' }}
+    steps:
+      - uses: actions/checkout@v4
+      - uses: swatinem/rust-cache@v2
+      - uses: homebrew/actions/setup-homebrew@master
+      - run: tools/setup.sh
+      - run: cargo install cargo-workspaces
+      - run: cargo workspaces publish -y --from-git
+        env:
+          CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_REGISTRY_TOKEN }}
+        if: github.ref == 'refs/heads/main'

.gitignore

@@ -1 +1,2 @@
+.cargo*
 target