Update workflow badges (actions#594)

Author: IvanZosimov

README.md

@@ -1,8 +1,9 @@
 # setup-python
 
-<p align="left">
-  <a href="https://github.com/actions/setup-python"><img alt="GitHub Actions status" src="https://github.com/actions/setup-python/workflows/Main%20workflow/badge.svg"></a>
-</p>
+[![Basic validation](https://github.com/actions/setup-python/actions/workflows/basic-validation.yml/badge.svg?branch=main)](https://github.com/actions/setup-python/actions/workflows/basic-validation.yml)
+[![Validate Python e2e](https://github.com/actions/setup-python/actions/workflows/test-python.yml/badge.svg?branch=main)](https://github.com/actions/setup-python/actions/workflows/test-python.yml)
+[![Validate PyPy e2e](https://github.com/actions/setup-python/actions/workflows/test-pypy.yml/badge.svg?branch=main)](https://github.com/actions/setup-python/actions/workflows/test-pypy.yml)
+[![e2e-cache](https://github.com/actions/setup-python/actions/workflows/e2e-cache.yml/badge.svg?branch=main)](https://github.com/actions/setup-python/actions/workflows/e2e-cache.yml)
 
 This action provides the following functionality for GitHub Actions users: