Update dependency sass to v1.77.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
sass	1.76.0 -> 1.77.0

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Release Notes

sass/dart-sass (sass)

v1.77.0

Compare Source

• Don't throw errors for at-rules in keyframe blocks.

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Configuration

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🚦 Automerge: Enabled.

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[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (1d4968d) to head (cd3b9f7).

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Additional details and impacted files

@@             Coverage Diff             @@
##              master       #88   +/-   ##
===========================================
  Coverage     100.00%   100.00%           
  Complexity       395       395           
===========================================
  Files             82        82           
  Lines           1048      1048           
===========================================
  Hits            1048      1048           

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