Update dependency sass to v1.77.2

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
sass	1.77.0 -> 1.77.2

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Release Notes

sass/dart-sass (sass)

### [`v1.77.2`](https://togithub.com/sass/dart-sass/blob/HEAD/CHANGELOG.md#1772) [Compare Source](https://togithub.com/sass/dart-sass/compare/1.77.1...1.77.2) - Don't emit deprecation warnings for functions and mixins beginning with `__`. - Allow user-defined functions whose names begin with `_` and otherwise look like vendor-prefixed functions with special CSS syntax. ##### Command-Line Interface - Properly handle the `--silence-deprecation` flag. - Handle the `--fatal-deprecation` and `--future-deprecation` flags for `--interactive` mode. ### [`v1.77.1`](https://togithub.com/sass/dart-sass/blob/HEAD/CHANGELOG.md#1771) [Compare Source](https://togithub.com/sass/dart-sass/compare/1.77.0...1.77.1) - Fix a crash that could come up with importers in certain contexts.

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