fix: access fixture param via callspec to fix skip logic

The `request.param` attribute is only available inside parameterized
fixtures, not in the test function itself where `request` is a
`TopRequest`. Use `request.node.callspec.params` instead.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: vdusek

tests/integration/test_request_queue.py

@@ -681,7 +681,8 @@ async def test_request_deduplication_edge_cases(
     request_queue_apify: RequestQueue, request: pytest.FixtureRequest
 ) -> None:
     """Test edge cases in request deduplication."""
-    if request.param == 'shared':
+    rq_access_mode = request.node.callspec.params.get('request_queue_apify')
+    if rq_access_mode == 'shared':
         pytest.skip('Test is flaky, see https://github.com/apify/apify-sdk-python/issues/786')
 
     rq = request_queue_apify