fix(deps): update dependency succulent to v0.21.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
succulent	0.18.1 -> 0.21.0

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Release Notes

aslilac/succulent (succulent)

### [`v0.21.0`](https://togithub.com/aslilac/succulent/compare/v0.20.0...v0.21.0) [Compare Source](https://togithub.com/aslilac/succulent/compare/v0.20.0...v0.21.0) ### [`v0.20.0`](https://togithub.com/aslilac/succulent/compare/v0.18.1...v0.20.0) [Compare Source](https://togithub.com/aslilac/succulent/compare/v0.18.1...v0.20.0)

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