[Chapel Merge] Pin Flake8 version and update Sphinx version to ma

Branch: refs/heads/main
Revision: 8ce1fd2
Author: lydia-duncan
Link: Unavailable
Log Message:

Merge pull request #64 from lydia-duncan/updateVersions

Pin Flake8 version and update Sphinx version to match main chapel repo
[discussed with team in principle, not reviewed]

We ran into some problems earlier because flake8 updated underneath us and was
detecting more issues. This pins flake8 to the most recent version so that we
update it on our terms in the future

Modified Files:
M requirements.txt

M test-requirements.txt

Compare: https://github.com/chapel-lang/sphinxcontrib-chapeldomain/compare/a97990da2c5a...8ce1fd28828e