fix: format stop() signature to satisfy line length lint

Author: cogwirrel

src/strands/tools/mcp/mcp_client.py

@@ -323,7 +323,12 @@ def remove_consumer(self, consumer_id: Any, **kwargs: Any) -> None:
 
     # MCP-specific methods
 
-    def stop(self, exc_type: type[BaseException] | None, exc_val: BaseException | None, exc_tb: TracebackType | None) -> None:
+    def stop(
+        self,
+        exc_type: type[BaseException] | None,
+        exc_val: BaseException | None,
+        exc_tb: TracebackType | None,
+    ) -> None:
         """Signals the background thread to stop and waits for it to complete, ensuring proper cleanup of all resources.
 
         This method is defensive and can handle partial initialization states that may occur