Update dependency @csstools/postcss-color-function to v3.0.3

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@csstools/postcss-color-function (source)	3.0.2 -> 3.0.3

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Release Notes

csstools/postcss-plugins (@​csstools/postcss-color-function)

### [`v3.0.3`](https://togithub.com/csstools/postcss-plugins/blob/HEAD/plugins/postcss-color-function/CHANGELOG.md#303) [Compare Source](https://togithub.com/csstools/postcss-plugins/compare/277eb08c7f8a033137b3329ef4db73d7acebf0cd...982f642d9bbbd6cec29762f602681b32ae4a64c7) *September 2, 2023* - Updated [`@csstools/css-color-parser`](https://togithub.com/csstools/postcss-plugins/tree/main/packages/css-color-parser) to [`1.3.1`](https://togithub.com/csstools/postcss-plugins/tree/main/packages/css-color-parser/CHANGELOG.md#131) (patch)

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Configuration

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