fix: correct ruff formatting and update active_groups test regex to match actual error message

Co-Authored-By: alfredo.garcia@airbyte.io <freddy.garcia7.fg@gmail.com>

Author: devin-ai-integration[bot]

unit_tests/sources/streams/concurrent/test_concurrent_read_processor.py

@@ -1492,7 +1492,10 @@ def test_is_done_raises_when_partition_generation_queue_not_empty():
     # Artificially mark the stream as done without removing it from the partition generation queue
     handler._streams_done.add("stuck_stream")
 
-    with pytest.raises(AirbyteTracedException, match="Partition generation queue is not empty after all streams completed"):
+    with pytest.raises(
+        AirbyteTracedException,
+        match="Partition generation queue is not empty after all streams completed",
+    ):
         handler.is_done()
 
 
@@ -1531,7 +1534,8 @@ def test_is_done_raises_when_active_groups_not_empty():
     handler._active_groups["my_group"] = {"stuck_stream"}
 
     with pytest.raises(
-        AirbyteTracedException, match="still active after all streams were marked done"
+        AirbyteTracedException,
+        match="Active stream groups are not empty after all streams completed",
     ):
         handler.is_done()