fix: stdio.write may be monkeypatched at runtime to be a class method

[Xmader]

In Google Colab,
PythonMonkey nightly v0.2.1.dev8+19f04e5

!pip install --extra-index-url https://nightly.pythonmonkey.io/ --pre pythonmonkey

import pythonmonkey as pm

[/usr/local/lib/python3.10/dist-packages/pythonmonkey/require.py](https://localhost:8080/#) in <module>
     61 globalThis.python.print  = print
     62 globalThis.python.stdout.write = sys.stdout.write
---> 63 globalThis.python.stderr.write = sys.stderr.write
     64 globalThis.python.stdout.read = sys.stdout.read
     65 globalThis.python.stderr.read = sys.stderr.read

TypeError: pythonmonkey cannot yet convert python objects of type: method