Update dependency open-props to v1.5.15

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
open-props	1.5.13 -> 1.5.15

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Release Notes

argyleink/open-props (open-props)

### [`v1.5.15`](https://togithub.com/argyleink/open-props/compare/de9daf9f44b47c68a4747e567e0085e9b0f98d6a...dd553ca987b7b85b099002932b0ac628963d56f2) [Compare Source](https://togithub.com/argyleink/open-props/compare/de9daf9f44b47c68a4747e567e0085e9b0f98d6a...dd553ca987b7b85b099002932b0ac628963d56f2) ### [`v1.5.14`](https://togithub.com/argyleink/open-props/compare/e6853ca7ce8e0ff10a9110034363c6506d3363e5...de9daf9f44b47c68a4747e567e0085e9b0f98d6a) [Compare Source](https://togithub.com/argyleink/open-props/compare/e6853ca7ce8e0ff10a9110034363c6506d3363e5...de9daf9f44b47c68a4747e567e0085e9b0f98d6a)

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