Add job to publish to crates.io

.github/workflows/ci.yaml

@@ -161,3 +161,19 @@ jobs:
         # This step uses the identity token to provision an ephemeral certificate
         # against the sigstore community Fulcio instance.
         run: echo "${TAGS}" | xargs -I {} cosign sign --yes {}@${DIGEST}
+
+  publish:
+    needs:
+      - format
+      - check
+      - build
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@4
+      - name: Setup Rust Toolchain for GitHub CI
+        uses: actions-rust-lang/setup-rust-toolchain@v1
+        with:
+          toolchain: stable
+      - uses: katyo/publish-crates@v2
+        with:
+          registry-token: ${{ secrets.CARGO_REGISTRY_TOKEN }}