Bump postcss from 8.5.8 to 8.5.12 in /website

[dependabot]

Bumps postcss from 8.5.8 to 8.5.12.

Release notes

Sourced from postcss's releases.

8.5.12

• Fixed reading any file via user-generated CSS.
• Added opts.unsafeMap to disable checks.

8.5.11

• Fixed nested brackets parsing performance (by @​offset).

8.5.10

• Fixed XSS via unescaped </style> in non-bundler cases (by @​TharVid).

8.5.9

• Speed up source map encoding paring in case of the error.

Changelog

Sourced from postcss's changelog.

8.5.12

• Fixed reading any file via user-generated CSS.
• Added opts.unsafeMap to disable checks.

8.5.11

• Fixed nested brackets parsing performance (by @​offset).

8.5.10

• Fixed XSS via unescaped </style> in non-bundler cases (by @​TharVid).

8.5.9

• Speed up source map encoding paring in case of the error.

Commits

• 9bc81c4 Release 8.5.12 version
• 85c4d7d Another try to fix coverage
• 94484ca Try to fix coverage
• c64b748 Load only .map source maps
• aaec7b7 Avoid throwing JSON parsing errors for non-JSON source maps
• 233fb26 Mention original author of the solution
• 2502f75 Release 8.5.11 version
• 5ca1901 Speed up parsing many nested brackets
• 42b5337 Update dependencies
• 7e36e15 Cache node.raws locally in Stringifier hot methods
• Additional commits viewable in compare view

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[meta-codesync]

@flinder has imported this pull request. If you are a Meta employee, you can view this in D103199118.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 96.08%. Comparing base (6866da6) to head (e573c7a).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #274   +/-   ##
=======================================
  Coverage   96.08%   96.08%           
=======================================
  Files           9        9           
  Lines        1966     1966           
=======================================
  Hits         1889     1889           
  Misses         77       77           

Flag	Coverage Δ
unittests	96.08% <ø> (ø)

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