Bug report
Hi, I found a small non-urgent bug so feel free to ignore it.

import json
assert '\udb0a\udfdf' == json.loads(json.dumps('\udb0a\udfdf'))

results in:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AssertionError

Your environment
I managed to reproduce it in your maylinux2010 docker for the versions 3.6, 3.7, 3.8, 3.9, 3.10.

sudo docker run -it manylinux2010