test: remove covered no-cover pragma

Author: daleselaji-dev

src/mcp/client/streamable_http.py

@@ -234,7 +234,7 @@ async def handle_get_stream(self, client: httpx2.AsyncClient, read_stream_writer
                 logger.debug("GET stream error", exc_info=True)
                 attempt += 1
 
-            if attempt >= MAX_RECONNECTION_ATTEMPTS:  # pragma: no cover
+            if attempt >= MAX_RECONNECTION_ATTEMPTS:
                 logger.debug(f"GET stream max reconnection attempts ({MAX_RECONNECTION_ATTEMPTS}) exceeded")
                 return