fix build badge

README.md

@@ -5,7 +5,7 @@
 [![](https://img.shields.io/pypi/l/whenever.svg?style=flat-square&color=blue)](https://pypi.python.org/pypi/whenever)
 [![](https://img.shields.io/badge/mypy-strict-forestgreen?style=flat-square)](https://mypy.readthedocs.io/en/stable/command_line.html#cmdoption-mypy-strict)
 [![](https://img.shields.io/badge/coverage-100%25-forestgreen?style=flat-square)](https://github.com/ariebovenberg/whenever)
-[![](https://img.shields.io/github/actions/workflow/status/ariebovenberg/whenever/tests.yml?branch=main&style=flat-square)](https://github.com/ariebovenberg/whenever)
+[![](https://img.shields.io/github/actions/workflow/status/ariebovenberg/whenever/checks.yml?branch=main&style=flat-square)](https://github.com/ariebovenberg/whenever)
 [![](https://img.shields.io/readthedocs/whenever.svg?style=flat-square)](http://whenever.readthedocs.io/)
 
 **Typed and DST-safe datetimes for Python, written in Rust**