Chaning java workflow config temporarily

[skip ci]

Author: diemol

.github/workflows/java.yml

@@ -1,13 +1,8 @@
 name: Java workflow
-
 on:
   workflow_dispatch:
-  push:
-    branches:
-      - trunk
-  pull_request:
-    branches:
-      - trunk
+  schedule:
+    - cron: '15 9,21 * * *'
 
 env:
   NODE_VERSION: '13.x'