Bump christophwurst/nextcloud_testing from 0.3.0 to 0.3.1

Bumps [christophwurst/nextcloud_testing](https://github.com/ChristophWurst/nextcloud_testing) from 0.3.0 to 0.3.1.
- [Commits](https://github.com/ChristophWurst/nextcloud_testing/compare/0.3.0...0.3.1

)

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