feat(ci): add GitHub Release creation to release workflow

Creates a GitHub Release with auto-generated notes after publishing
to crates.io when a version tag is pushed.

Author: iam-dev

.github/workflows/release.yml

@@ -25,3 +25,9 @@ jobs:
 
       - name: cargo publish
         run: cargo publish --token ${{ secrets.CARGO_REGISTRY_TOKEN }}
+
+      - name: Create GitHub Release
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          TAG: ${{ github.ref_name }}
+        run: gh release create "$TAG" --generate-notes