[Snyk] Security upgrade sphinx from 1.8.4 to 3.0.4#19

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mcclown wants to merge 1 commit intomasterfrom snyk-fix-cb0d2b3e45bd09fdf3c7d52f72bf1cf3

+1-1

Commits on May 12, 2022

fix: requirements.txt to reduce vulnerabilities
snyk-bot
committed