SQSCANGHA-25 Adapt events that trigger the qa workflow

.github/workflows/qa.yml

@@ -1,6 +1,11 @@
 name: QA
 
-on: [push, pull_request]
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    types: [opened, synchronize, reopened]
 
 jobs:
   argsInputTest:
@@ -128,4 +133,4 @@ jobs:
           projectBaseDir: ./test/example-project
       - name: Assert
         run: |
-          ./test/assertFileExists ./test/example-project/.scannerwork/report-task.txt
+          ./test/assertFileExists ./test/example-project/.scannerwork/report-task.txt