chore(deps): update dependency sass-true to v10

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
sass-true (source)	^8.1.0 -> ^10.0.0

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Release Notes

oddbird/true (sass-true)

v10.0.1

Compare Source

• DOCUMENTATION: Rewrite README documentation
• INTERNAL: Update dependencies

v10.0.0

Compare Source

• BREAKING: Remove the $inspect option from assertions,
  since Sass has improved comparisons and changed inspection.
  #​332
• FEATURE: Multiple contains() and contains-string() expectations
  can be used in a single assertion.
  #​333
• FEATURE: Do not fail on non-standard at-rules (switch to postcss for css
  parsing). #​314
• INTERNAL: Update dependencies

Migration:
It seems that most tests can be updated
by simply removing the $inspect argument entirely,
with no other changes.
In some cases, you may still need one of the following:

• Numeric tests with long decimals should use
  math.round() to explicitly compare values
  at the desired level of precision,
  rather than relying on the unreliable precision
  of the meta.inspect() function.
• Tests that rely on map output might throw an error
  since 'maps' are not a defined CSS syntax.
  In this case you can use meta.inspect()
  to compare the string representations of maps.

v9.0.0

Compare Source

• FEATURE: contains-string() supports substring matching.
  #​311
• BREAKING: Drop support for node < 20
• INTERNAL: Update dependencies

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