[CONFIG] [Github Actions] trigger events changed.

Author: Gonzalo Diaz

.github/workflows/yamllint.yml

@@ -3,7 +3,10 @@ name: YAML lint
 
 on: # yamllint disable-line rule:truthy
   push:
+    branches: ["main"]
   pull_request:
+    # The branches below must be a subset of the branches above
+    branches: ["main"]
   workflow_dispatch:
 
 jobs: