chore(deps): update dependency sphinx_rtd_theme to v0.5.2

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
sphinx_rtd_theme	==0.5.1 -> ==0.5.2

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Release Notes

readthedocs/sphinx_rtd_theme

### [`v0.5.2`](https://togithub.com/readthedocs/sphinx_rtd_theme/compare/0.5.1...0.5.2) [Compare Source](https://togithub.com/readthedocs/sphinx_rtd_theme/compare/0.5.1...0.5.2)

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Configuration

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[what-the-diff[bot]]

• The version of sphinx_rtd_theme was changed from 0.5.1 to 0.5.2