fix: Use max() instead of min() for request_max_duration statistic (#1701)

The statistics tracking for maximum request duration was incorrectly using `min()` instead of `max()`, causing the statistic to always show the minimum duration instead of the maximum.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: vdusek

src/crawlee/statistics/_statistics.py

@@ -234,7 +234,7 @@ def record_request_processing_finish(self, request_id_or_key: str) -> None:
         state.request_min_duration = min(
             state.request_min_duration if state.request_min_duration is not None else timedelta.max, duration
         )
-        state.request_max_duration = min(
+        state.request_max_duration = max(
             state.request_max_duration if state.request_max_duration is not None else timedelta(), duration
         )
 

tests/unit/_statistics/test_request_max_duration.py

@@ -0,0 +1,34 @@
+from __future__ import annotations
+
+import asyncio
+
+from crawlee.statistics import Statistics
+
+
+async def test_request_max_duration_tracks_maximum() -> None:
+    """Test that request_max_duration correctly tracks the maximum duration, not the minimum."""
+    async with Statistics.with_default_state() as statistics:
+        # Record a short request
+        statistics.record_request_processing_start('request_1')
+        statistics.record_request_processing_finish('request_1')
+        first_duration = statistics.state.request_max_duration
+
+        # Record a longer request
+        statistics.record_request_processing_start('request_2')
+        await asyncio.sleep(0.05)  # 50ms delay
+        statistics.record_request_processing_finish('request_2')
+        second_duration = statistics.state.request_max_duration
+
+        # The max duration should be updated to the longer request's duration
+        assert second_duration is not None
+        assert first_duration is not None
+        assert second_duration >= first_duration
+        assert second_duration.total_seconds() >= 0.05
+
+        # Record another short request - max should NOT decrease
+        statistics.record_request_processing_start('request_3')
+        statistics.record_request_processing_finish('request_3')
+        third_duration = statistics.state.request_max_duration
+
+        # The max duration should remain unchanged (still the longest request)
+        assert third_duration == second_duration