chore(deps): update dependency stylelint to v15.8.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
stylelint (source)	15.7.0 -> 15.8.0

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Release Notes

stylelint/stylelint

### [`v15.8.0`](https://togithub.com/stylelint/stylelint/blob/HEAD/CHANGELOG.md#​1580) [Compare Source](https://togithub.com/stylelint/stylelint/compare/15.7.0...15.8.0) - Added: `media-feature-name-value-no-unknown` ([#​6906](https://togithub.com/stylelint/stylelint/pull/6906)) ([@​romainmenke](https://togithub.com/romainmenke)). - Added: support for `.mjs` configuration files ([#​6910](https://togithub.com/stylelint/stylelint/pull/6910)) ([@​ybiquitous](https://togithub.com/ybiquitous)). - Fixed: `--print-config` description in CLI help ([#​6914](https://togithub.com/stylelint/stylelint/pull/6914)) ([@​ybiquitous](https://togithub.com/ybiquitous)). - Fixed: `allowEmptyInput` option in configuration files ([#​6929](https://togithub.com/stylelint/stylelint/pull/6929)) ([@​ybiquitous](https://togithub.com/ybiquitous)). - Fixed: `custom-property-no-missing-var-function` performance ([#​6922](https://togithub.com/stylelint/stylelint/pull/6922)) ([@​romainmenke](https://togithub.com/romainmenke)). - Fixed: `function-calc-no-unspaced-operator` performance ([#​6923](https://togithub.com/stylelint/stylelint/pull/6923)) ([@​romainmenke](https://togithub.com/romainmenke)). - Fixed: `function-linear-gradient-no-nonstandard-direction` performance ([#​6924](https://togithub.com/stylelint/stylelint/pull/6924)) ([@​romainmenke](https://togithub.com/romainmenke)). - Fixed: `function-no-unknown` false positives for SCSS functions with namespace ([#​6921](https://togithub.com/stylelint/stylelint/pull/6921)) ([@​romainmenke](https://togithub.com/romainmenke)). - Fixed: `max-nesting-depth` error for at-rules in Sass syntax ([#​6909](https://togithub.com/stylelint/stylelint/pull/6909)) ([@​ybiquitous](https://togithub.com/ybiquitous)). - Fixed: `selector-anb-no-unmatchable` performance ([#​6925](https://togithub.com/stylelint/stylelint/pull/6925)) ([@​romainmenke](https://togithub.com/romainmenke)). - Fixed: remove `v8-compile-cache` dependency ([#​6907](https://togithub.com/stylelint/stylelint/pull/6907)) ([@​ybiquitous](https://togithub.com/ybiquitous)).

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