ci.yml in jekyll-indico-0.2.0

- old
+ new

@@ -1,11 +1,12 @@
-name: Ruby
+name: CI
 
 on:
   workflow_dispatch:
   pull_request:
   push:
-    branches: [ $default-branch ]
+    branches:
+      - main
 
 jobs:
   test:
     runs-on: ubuntu-latest
 