fix links

Author: puredanger

README.md

@@ -49,7 +49,7 @@ Latest release: 1.5.648
 
 [Contributing to Clojure projects](https://clojure.org/community/contributing) requires a signed Contributor Agreement. Pull requests and GitHub issues are not accepted; please use the [core.async JIRA project](https://clojure.atlassian.net/browse/ASYNC) to report problems or enhancements.
 
-[![CLJS Tests](https://github.com/clojure/core.async/actions/workflows/test.yml/badge.svg)](https://github.com/clojure/core.async/actions/workflows/test.yml)
+[![CLJS Tests](https://github.com/clojure/core.async/actions/workflows/test.yaml/badge.svg)](https://github.com/clojure/core.async/actions/workflows/test.yaml)
 
 To run the ClojureScript tests: