style: appease linter

Signed-off-by: Samantha Coyle <sam@diagrid.io>

Author: sicoyle

src/mcp/client/streamable_http.py

@@ -222,7 +222,7 @@ async def handle_get_stream(self, client: httpx.AsyncClient, read_stream_writer:
                 # For other HTTP errors, log and retry
                 logger.debug(f"GET stream HTTP error: {exc.response.status_code} - {exc}")
                 attempt += 1
-            except Exception as exc:  # pragma: lax no cover
+            except Exception:  # pragma: lax no cover
                 logger.debug("GET stream error", exc_info=True)
                 attempt += 1