Update dependency Sphinx to v3.5.4 - autoclosed #865

Job	Run time
black	27s
validate_renovate	30s
bandit	22s
flake8	19s
pydocstyle	20s
mypy	25s
yamllint	23s
build	55s
pylint	1m 9s
unittest (3.8)	35s
unittest (3.9)	38s
unittest (3.10)	35s
unittest (3.11)	36s
Publish to GitHub	0s
Push Package to PyPI	0s
Send notification to the Slack	0s
	7m 14s

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