[INFRA] fix scheduled cron action setup

Author: Andreas Mautz

.github/workflows/main.yml

@@ -1,8 +1,9 @@
 name: "Build on main"
 on:
+  workflow_dispatch:
   push:
     branches: [ main ]
-  workflow_dispatch:
+
 jobs:
   scheduler:
     name: Build Trigger

.github/workflows/schedule.yml

@@ -2,7 +2,7 @@ name: "Build Scheduler"
 on:
   workflow_dispatch:
   schedule:
-  - cron:  '35 1 * * 0'
+  - cron:  '30 3 * * 1'
 
 jobs:
   scheduler: