chore(deps): update dependency sass to v1.81.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
sass	1.80.7 -> 1.81.0

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Release Notes

sass/dart-sass (sass)

v1.81.0

Compare Source

• Fix a few cases where deprecation warnings weren't being emitted for global
  built-in functions whose names overlap with CSS calculations.

• Add support for the CSS round() calculation with a single argument, as long
  as that argument might be a unitless number.

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