docs: update badge in README (#36)

README.md

@@ -70,7 +70,7 @@ Published under [MIT License](./LICENCE).
 [npm-version-href]: https://npmjs.com/package/unifont
 [npm-downloads-src]: https://img.shields.io/npm/dm/unifont?style=flat-square
 [npm-downloads-href]: https://npm.chart.dev/unifont
-[github-actions-src]: https://img.shields.io/github/workflow/status/unjs/unifont/ci/main?style=flat-square
+[github-actions-src]: https://img.shields.io/github/actions/workflow/status/unjs/unifont/ci.yml?branch=main&style=flat-square
 [github-actions-href]: https://github.com/unjs/unifont/actions?query=workflow%3Aci
 [codecov-src]: https://img.shields.io/codecov/c/gh/unjs/unifont/main?style=flat-square
 [codecov-href]: https://codecov.io/gh/unjs/unifont