.github/workflows/ci.yml

@@ -1,12 +1,10 @@
 name: CI
 
-on:
-  - push
-  - pull_request
+on: [push, pull_request]
 
 jobs:
   CI:
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-20.04
     steps:
       - name: 'Check out code'
         uses: actions/checkout@v4