Update dependency g-plane/malva to v0.5.1

[renovate[bot]]

This PR contains the following updates:

Package	Update	Change
g-plane/malva	patch	v0.5.0 -> v0.5.1

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Release Notes

g-plane/malva (g-plane/malva)

### [`v0.5.1`](https://togithub.com/g-plane/malva/releases/tag/v0.5.1) [Compare Source](https://togithub.com/g-plane/malva/compare/v0.5.0...v0.5.1) #### Chore - Added descriptions to configuration JSON schema.

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Configuration

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