Merge pull request #349 from openedx/feanil/update_common_constraints

build: Remove constraint on sphinx<6.0.0

edx_lint/files/common_constraints.txt

@@ -25,8 +25,3 @@ django-simple-history==3.0.0
 # tox>4.0.0 isn't yet compatible with many tox plugins, causing CI failures in almost all repos.
 # Details can be found in this discussion: https://github.com/tox-dev/tox/discussions/1810
 tox<4.0.0
-
-# edx-sphinx-theme is not compatible with latest Sphinx==6.0.0 version 
-# Pinning Sphinx version unless the compatibility issue gets resolved
-# For details, see issue https://github.com/openedx/edx-sphinx-theme/issues/197
-sphinx<6.0.0