Update dependency stylelint to v11.1.1

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
stylelint (source)	devDependencies	minor	11.0.0 -> 11.1.1

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Release Notes

stylelint/stylelint

### [`v11.1.1`](https://togithub.com/stylelint/stylelint/blob/master/CHANGELOG.md#​1111) [Compare Source](https://togithub.com/stylelint/stylelint/compare/11.1.0...11.1.1) - Fixed: syntax configuration for `--syntax css` ([#​4335](https://togithub.com/stylelint/stylelint/pull/4335)). ### [`v11.1.0`](https://togithub.com/stylelint/stylelint/blob/master/CHANGELOG.md#​1110) [Compare Source](https://togithub.com/stylelint/stylelint/compare/11.0.0...11.1.0) - Added: `css` syntax option ([#​4315](https://togithub.com/stylelint/stylelint/pull/4315)). - Fixed: `no-eol-whitespace` parsing problems for non-standard syntaxes ([#​4313](https://togithub.com/stylelint/stylelint/pull/4313)). - Fixed: `selector-pseudo-class-no-unknown` false positives for `:is` selector ([#​4321](https://togithub.com/stylelint/stylelint/pull/4321)).

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