remove the if check and ignore failures

.github/workflows/Test-AITs.yml

@@ -329,11 +329,11 @@ jobs:
             agent-integration-tests/testing-artifacts/*
 
       - name: Upload negative value artifact
-        if: ${{ always() && hashFiles('negative_value.txt') != '' }}
         uses: actions/upload-artifact@v3
         with:
           name: negative_value.txt
           path: ${{ github.workspace }}
+          if-no-files-found: ignore
 
 #  notify-failure:
 #    needs: [tests]