fix: use null storage path instead of placeholder

Author: joseph-sentry

upload/tests/views/test_test_results.py

@@ -429,7 +429,7 @@ def test_upload_test_results_file_not_found(db, client, mocker, mock_redis):
         "build_url": "test-build-url",
         "job": "test-job",
         "service": "github-actions",
-        "url": "placeholder",
+        "url": None,
         "commit": commit_sha,
         "report_code": None,
         "flags": None,

upload/views/test_results.py

@@ -140,7 +140,7 @@ def post(self, request):
         url = None
         file_not_found = data.get("file_not_found", False)
         if file_not_found:
-            storage_path = "placeholder"
+            storage_path = None
         else:
             archive_service = ArchiveService(repo)