Fix few small bugs (#17019)
### Fix few bugs
1. symbolic shape infer, there is no None check before get length.
2. Rename PythonOp/PythonOpGrad's attribute `name` to `func_name`,
otherwise, when we use onnx.helper.make_node to create node, `name`
conflicts with node name.
3. Filter shape inference warnings for PythonOp for torch 2.0 or newer.
4. Close file descriptor for log suppression. Without the fix, two extra
fd is left after the log suppression exit its context.
Before enter log suppression (left), Before exit log suppression (right)
With the fix, no fd added after context exit.
