[Python-checkins] Fix potential flakiness in `test_run_until_complete_baseexception` (#100148)

[kumaraditya303]

https://github.com/python/cpython/commit/a9bad4d28413666edc57551dd439bca6a6a59dd9
commit: a9bad4d28413666edc57551dd439bca6a6a59dd9
branch: main
author: Fantix King <fantix.king at gmail.com>
committer: kumaraditya303 <59607654+kumaraditya303 at users.noreply.github.com>
date: 2022-12-10T15:35:24+05:30
summary:

Fix potential flakiness in `test_run_until_complete_baseexception` (#100148)

files: