build(deps-dev): bump postcss from 8.4.38 to 8.4.42

[dependabot[bot]]

Bumps postcss from 8.4.38 to 8.4.42.

Release notes

Sourced from postcss's releases.

8.4.42

• Fixed CSS syntax error on long minified files (by @​varpstar).

8.4.41

• Fixed types (by @​nex3 and @​querkmachine).
• Cleaned up RegExps (by @​bluwy).

8.4.40

• Moved to getter/setter in nodes types to help Sass team (by @​nex3).

8.4.39

• Fixed CssSyntaxError types (by @​romainmenke).

Changelog

Sourced from postcss's changelog.

8.4.42

• Fixed CSS syntax error on long minified files (by @​varpstar).

8.4.41

• Fixed types (by @​nex3 and @​querkmachine).
• Cleaned up RegExps (by @​bluwy).

8.4.40

• Moved to getter/setter in nodes types to help Sass team (by @​nex3).

8.4.39

• Fixed CssSyntaxError types (by @​romainmenke).

Commits

• 0fda48a Release 8.4.42 version
• cd5b08c Add ESLint to CI
• 0975cc2 Sort source code and fix ESLint
• 36950b4 Try to fix old Node.js tests
• fbb6d60 Update dependencies
• 118ebc9 Clean up code
• 9e7bdca Pretty CssSyntaxError from onelined (minified) css (#1965)
• 45a2425 Merge pull request #1961 from nex3/readonly-array
• 0cb325a Use ReadonlyArray for argument types that aren't modified
• a886628 Merge pull request #1957 from nex3/protected-normalize
• Additional commits viewable in compare view

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[daveroverts]

@dependabot rebase

[dependabot[bot]]

Looks like postcss is up-to-date now, so this is no longer needed.