Update Sphinx and related dependencies to latest

[charlesbvll]

Issue

Description

Related issues/PRs

Proposal

Explanation

Checklist

• [ ] Implement proposed change
• [ ] Write tests
• [ ] Update documentation
• [ ] Update the changelog entry below
• [ ] Make CI checks pass
• [ ] Ping maintainers on Slack (channel #contributions)

Changelog entry

Any other comments?