chore: publish using trusted publishing

Signed-off-by: Xuanwo <github@xuanwo.io>

Author: Xuanwo

.github/workflows/publish.yml

@@ -0,0 +1,23 @@
+name: Publish to crates.io
+
+on:
+  push:
+    tags:
+      - "v*"
+
+jobs:
+  publish:
+    name: Publish crate
+    runs-on: ubuntu-latest
+    environment: release
+    permissions:
+      id-token: write
+    steps:
+      - uses: actions/checkout@v4
+      - name: Authenticate with crates.io
+        uses: rust-lang/crates-io-auth-action@v1
+        id: auth
+      - name: Publish to crates.io
+        run: cargo publish -p backon
+        env:
+          CARGO_REGISTRY_TOKEN: ${{ steps.auth.outputs.token }}