create standalone

Author: albertmink

.github/workflows/upload-standalone.yml

@@ -1,6 +1,8 @@
 name: standalone-program
 
 on:
+  pull_request:
+
   push:
     branches:
       - main
@@ -34,4 +36,4 @@ jobs:
       uses: actions/upload-artifact@v4
       with:
         name: saff_generator.prog.abap
-        path: saff_generator.prog.abap
+        path: saff_generator.prog.abap