Bump autoprefixer from 9.8.4 to 9.8.6

[dependabot-preview]

Bumps autoprefixer from 9.8.4 to 9.8.6.

Release notes

Sourced from autoprefixer's releases.

9.8.6

• Fixed env option.

9.8.5

• Improved Grid Layout warnings (by @Dan503).
• Fixed align-self and justify-self with display: flex (by @Dan503).

Changelog

Sourced from autoprefixer's changelog.

9.8.6

• Fixed env option.

9.8.5

• Improved Grid Layout warnings (by Daniel Tonon).
• Fixed align-self and justify-self with display: flex (by Daniel Tonon).

Commits

• 34fa5ad Release 9.8.6 version
• 61b515c Update dependencies
• 474661a Clean up code
• 21becd4 Normalize CHANGELOG.md
• 3c807f2 Change log fix for v9.8.5 (#1339)
• 9a4ea8b Release 9.8.5 version
• ffc1833 Fix size limit
• cd55758 Update dependencies
• a6250bf Merge branch 'Dan503-Dan503/Bump preact* packages to latest versions #1335-justify-align-self'
• 4ea1c3a Merge
• Additional commits viewable in compare view

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