resolved mypy error

Author: debnathshoham

pandas/core/frame.py

@@ -4283,8 +4283,8 @@ def check_int_infer_dtype(dtypes):
                 elif dtype == "float":
                     # GH#42452 : np.dtype("float") coerces to np.float64 from Numpy 1.20
                     converted_dtypes.extend(
-                        [np.float64, np.float32, np.float16]
-                    )  # type: ignore[list-item]
+                        [np.float64, np.float32, np.float16]  # type: ignore[list-item]
+                    )
                 else:
                     # error: Argument 1 to "append" of "list" has incompatible type
                     # "Union[dtype[Any], ExtensionDtype]"; expected