fix: Restrict Sphinx's version since it breaks docs build (#3483)
fix: Restrict Sphinx's version since it breaks docs build (#3483)

* The release of v5.1.0 breaks docs build for a lot of projects
  apparently according to the issue on their project. So restrict the
  version to v5.0.2 and below.

Signed-off-by: Ryan Blakley <4a327043a305696607bd61d35aea19bf3b153200@redhat.com>
RedHatInsights/insights-core,RedHatInsights/insights-core