ci: Enable tag-based release workflow

.github/workflows/release.yml

@@ -1,9 +1,8 @@
 name: Release
 on:
-  #push:
-  #  tags:
-  #    - "v*"
-  workflow_dispatch: {}
+  push:
+    tags:
+      - "v*"
 
 jobs:
   cargo_publish:
@@ -26,6 +25,12 @@ jobs:
           command: install
           args: cargo-workspaces
 
+      - name: Publish to Crates.io
+        env:
+          CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_REGISTRY_TOKEN }}
+        run: |
+          cargo workspaces publish --from-git
+
   github_release:
     name: Create GitHub Release
     needs: [cargo_publish]