Bump league/climate from 3.5.0 to 3.5.2 in /_backend

[dependabot-preview]

Bumps league/climate from 3.5.0 to 3.5.2.

Changelog

Sourced from league/climate's changelog.

3.5.2 - 2019-12-01

Fixed

• [Checkbox] Ensure we can output when the terminal width is unknown. #156

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3.5.1 - 2019-11-24

Fixed

• [Art] Be stricter about matching filenames when looking for art. #155
• [Support] Provide better support for Windows using GitHub actions.

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Commits

• 6b53a28 Ensure we can output checkboxes when the terminal width is unknown
• 04c8aba Update the changelog for version 3.5.1
• 6b1a7f5 Handle slow operating systems
• 4f96a86 Support other OS line endings
• a88915e Correct some test namespaces
• 3b28207 Ensure we correctly escape the directory separator on windows
• 733ecda Ensure we support filenames without extensions
• 71573e8 Ensure we don't draw an image unless the filename matches exactly
• d562a80 Create a GitHub action to run the tests
• 111b2de Correct the case of the vsfstream dependency path
• Additional commits viewable in compare view

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