fix(api): clean up scan tmp output failure to avoid disk fill (#11421)

Co-authored-by: Pepe Fagoaga <pepe@prowler.com>

api/src/backend/tasks/tests/test_tasks.py

@@ -15,8 +15,10 @@ from tasks.jobs.lighthouse_providers import (
 from tasks.tasks import (
     DJANGO_TMP_OUTPUT_DIRECTORY,
     STALE_TMP_OUTPUT_MAX_AGE_HOURS,
+    ScanReportRLSTask,
     _cleanup_orphan_scheduled_scans,
     _perform_scan_complete_tasks,
+    _scan_tmp_output_directory,
     check_integrations_task,
     check_lighthouse_provider_connection_task,
     generate_outputs_task,
@@ -771,6 +773,38 @@ class TestGenerateOutputs:
             mock_s3_task.assert_called_once()
 
 
+class TestScanReportRLSTaskOnFailure:
+    def test_on_failure_removes_scan_tmp_directory(self):
+        task = ScanReportRLSTask()
+
+        with patch("tasks.tasks.rmtree") as mock_rmtree:
+            task.on_failure(
+                exc=OSError("No space left on device"),
+                task_id="task-abc",
+                args=(),
+                kwargs={"tenant_id": "t-1", "scan_id": "s-1"},
+                _einfo=None,
+            )
+
+        mock_rmtree.assert_called_once_with(
+            _scan_tmp_output_directory("t-1", "s-1"), ignore_errors=True
+        )
+
+    def test_on_failure_skips_when_missing_kwargs(self):
+        task = ScanReportRLSTask()
+
+        with patch("tasks.tasks.rmtree") as mock_rmtree:
+            task.on_failure(
+                exc=OSError("No space left on device"),
+                task_id="task-abc",
+                args=(),
+                kwargs={},
+                _einfo=None,
+            )
+
+        mock_rmtree.assert_not_called()
+
+
 class TestScanCompleteTasks:
     @patch("tasks.tasks.aggregate_attack_surface_task.apply_async")
     @patch("tasks.tasks.chain")