Update dependency sass to v1.38.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
sass	1.37.5 -> 1.38.0

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Release Notes

sass/dart-sass

v1.38.0

Compare Source

• In expanded mode, emit characters in Unicode private-use areas as escape
  sequences rather than literal characters.

• Fix a bug where quotes would be omitted for an attribute selector whose value
  was a single backslash.

• Properly consider numbers that begin with . as "plain CSS" for the purposes
  of parsing plain-CSS min() and max() functions.

• Allow if to be used as an unquoted string.

• Properly parse backslash escapes within url() expressions.

• Fix a couple bugs where @extends could be marked as unsatisfied when
  multiple identical @extends extended selectors across @use rules.

Command Line Interface

• Strip CRLF newlines from snippets of the original stylesheet that are included
  in the output when an error occurs.

JS API

• Don't crash when a Windows path is returned by a custom Node importer at the
  same time as file contents.

• Don't crash when an error occurs in a stylesheet loaded via a custom importer
  with a custom URL scheme.

Dart API

• Add a SassArgumentList.keywordsWithoutMarking getter to access the keyword
  arguments of an argument list without marking them accessed.

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