Bump sphinx from 3.4.1 to 3.4.3

[dependabot-preview]

Bumps sphinx from 3.4.1 to 3.4.3.

Changelog

Sourced from sphinx's changelog.

Release 3.4.3 (released Jan 08, 2021)

Bugs fixed

• #8655: autodoc: Failed to generate document if target module contains an object that raises an exception on hasattr()

Release 3.4.2 (released Jan 04, 2021)

Bugs fixed

• #8164: autodoc: Classes that inherit mocked class are not documented
• #8602: autodoc: The autodoc-process-docstring event is emitted to the non-datadescriptors unexpectedly
• #8616: autodoc: AttributeError is raised on non-class object is passed to autoclass directive

Commits

• 55cdadf Bump to 3.4.3 final
• ac12d8d Merge pull request #8656 from tk0miya/8655_exception_on_hasattr
• a51c8a5 Fix #8655: autodoc: Crashes when object raises an exception on hasattr()
• 4755557 Bump version
• 83d5a32 Bump to 3.4.2 final
• b59a48d Merge pull request #8650 from tk0miya/update_release_checklist
• b3f8bd1 doc: Quote URLs in release checklist
• 1346ddf Merge pull request #8635 from tk0miya/update_copyright
• f996859 A happy new year!
• 5383846 Merge pull request #8622 from tk0miya/8616_AttributeError_for_non_class
• Additional commits viewable in compare view

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