Update sphinx to 8.1.0#364

pyup-bot wants to merge 1 commit intomasterrtfol/aiohttp-sse-client:masterfrom

pyup-update-sphinx-3.5.3-to-8.1.0rtfol/aiohttp-sse-client:pyup-update-sphinx-3.5.3-to-8.1.0Copy head branch name to clipboard