Update dependency nextron to v8.15.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
nextron	8.13.0 -> 8.15.0

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Release Notes

saltyshiomix/nextron (nextron)

### [`v8.15.0`](https://togithub.com/saltyshiomix/nextron/compare/v8.14.0...v8.15.0) [Compare Source](https://togithub.com/saltyshiomix/nextron/compare/v8.14.0...v8.15.0) ### [`v8.14.0`](https://togithub.com/saltyshiomix/nextron/compare/v8.13.0...v8.14.0) [Compare Source](https://togithub.com/saltyshiomix/nextron/compare/v8.13.0...v8.14.0)

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Configuration

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