fix(deps): update dependency stylelint-scss to v6.8.1

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
stylelint-scss	6.7.0 -> 6.8.1

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Release Notes

stylelint-scss/stylelint-scss (stylelint-scss)

### [`v6.8.1`](https://redirect.github.com/stylelint-scss/stylelint-scss/blob/HEAD/CHANGELOG.md#681) [Compare Source](https://redirect.github.com/stylelint-scss/stylelint-scss/compare/v6.8.0...v6.8.1) - Fixed: `declaration-property-value-no-unknown` fix false positives for nested properties in nested declarations ([#​1068](https://redirect.github.com/stylelint-scss/stylelint-scss/issues/1068)). **Full Changelog**: https://github.com/stylelint-scss/stylelint-scss/compare/v6.8.0...v6.8.1 ### [`v6.8.0`](https://redirect.github.com/stylelint-scss/stylelint-scss/blob/HEAD/CHANGELOG.md#680) [Compare Source](https://redirect.github.com/stylelint-scss/stylelint-scss/compare/v6.7.0...v6.8.0) - Added: `function-color-channel` rule ([#​1060](https://redirect.github.com/stylelint-scss/stylelint-scss/issues/1060)). - Added: `selector-no-redundant-nesting-selector` support for Dart Sass deprecation ([#​1022](https://redirect.github.com/stylelint-scss/stylelint-scss/issues/1022)). - Fixed: `declaration-property-value-no-unknown` include explicit namespace variables in `isDollarVar()` ([#​1062](https://redirect.github.com/stylelint-scss/stylelint-scss/issues/1062)). - Fixed: `declaration-property-value-no-unknown` fix false positives for imported custom functions ([#​1061](https://redirect.github.com/stylelint-scss/stylelint-scss/issues/1061)). - Fixed: `declaration-property-value-no-unknown` reported ranges and message ([stylelint/stylelint#8003](https://redirect.github.com/stylelint/stylelint/pull/8003), [#​1066](https://redirect.github.com/stylelint-scss/stylelint-scss/issues/1066)). - Fixed: `declaration-property-value-no-unknown` false negatives/positives via [`css-tree@3.0.0`](https://redirect.github.com/csstree/csstree/releases/tag/v3.0.0) ([stylelint/stylelint#7993](https://redirect.github.com/stylelint/stylelint/pull/7993), [#​1065](https://redirect.github.com/stylelint-scss/stylelint-scss/issues/1065)). **Full Changelog**: https://github.com/stylelint-scss/stylelint-scss/compare/v6.7.0...v6.8.0

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