Add "push" on main to the triggers of the build action

Signed-off-by: Esteban Martinena <[email protected]>

Author: orensbruli

.github/workflows/build.yaml

@@ -1,6 +1,9 @@
 name: build
 on:
   pull_request:
+  push:
+    branches:
+      - main
   schedule:
     - cron: '35 0 * * *'
   workflow_dispatch: