remove branches * from the action

Author: nvnieuwk

.github/workflows/examples.yml

@@ -1,13 +1,9 @@
 name: Check examples
 on:
   push:
-    branches:
-      - '*'
     tags-ignore:
       - '*'
   pull_request:
-    branches:
-      - '*'
 jobs:
   check_examples:
     name: Check examples output