Adds checkout to test reporter workflow

Author: Lissy93

.github/workflows/report-tests.yml

@@ -18,6 +18,9 @@ jobs:
     if: github.event.workflow_run.conclusion != 'cancelled'
 
     steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
       - name: Download artifacts
         uses: actions/download-artifact@v4
         with: