Bump sphinx from 3.4.0 to 3.4.1

Created by: dependabot-preview[bot]

Bumps sphinx from 3.4.0 to 3.4.1.

Changelog

Sourced from sphinx's changelog.

Release 3.4.1 (released Dec 25, 2020)

Bugs fixed

• #8559: autodoc: AttributeError is raised when using forward-reference type annotations
• #8568: autodoc: TypeError is raised on checking slots attribute
• #8567: autodoc: Instance attributes are incorrectly added to Parent class
• #8566: autodoc: The autodoc-process-docstring event is emitted to the alias classes unexpectedly
• #8583: autodoc: Unnecessary object comparision via __eq__ method
• #8565: linkcheck: Fix PriorityQueue crash when link tuples are not comparable

Commits

• f5406b9 Bump to 3.4.1 final
• b94752a Merge pull request #8585 from tk0miya/8583_unnecessary_eq
• 5c39d0c Fix #8583: autodoc: Unnecessary object comparision via __eq__ method
• 0432604 Merge pull request #8581 from tk0miya/8566_autodoc_process_docstring_for_alia...
• df8ab21 Fix #8566: autodoc-process-docstring is emitted to the alias classes
• 46eaa5d Merge pull request #8579 from francoisfreitag/fix-queue
• a1b8b1f Ensure linkcheck items are comparable
• 955d655 Merge pull request #8571 from tk0miya/8567_wrong_ivars_in_parent_class
• 70bb226 Fix #8567: autodoc: Instance attributes are incorrectly added to Parent class
• 31cad2e Merge pull request #8570 from tk0miya/8569_getslots_TypeError
• Additional commits viewable in compare view

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