Update ci workflow and badge

.github/workflows/ci.yml

@@ -1,9 +1,10 @@
+# .github/workflows/ci.yml
 name: ci
 
 on: [push, pull_request]
 
 jobs:
-  test:
-    uses: catalyst/catalyst-moodle-workflows/.github/workflows/group-39-plus-ci.yml@main
+  ci:
+    uses: catalyst/catalyst-moodle-workflows/.github/workflows/ci.yml@main
     with:
       disable_behat: true

README.md

@@ -1,4 +1,4 @@
-[![Build Status](https://github.com/catalyst/moodle-auth_outage/workflows/Run%20all%20tests%20for%20Moodle%2039+/badge.svg)](https://github.com/catalyst/moodle-auth_outage/actions)
+![GitHub Workflow Status (branch)](https://img.shields.io/github/actions/workflow/status/catalyst/moodle-auth_outage/ci.yml?branch=MOODLE_39_STABLE)
 
 # Moodle Outage manager plugin
 * [Version Support](#version-support)