chore(deps): Bump postcss from 8.5.6 to 8.5.15

[dependabot]

Bumps postcss from 8.5.6 to 8.5.15.

Release notes

Sourced from postcss's releases.

8.5.15

• Fixed declaration parsing performance (by @​homanp).

8.5.14

• Fixed custom syntax regression (by @​43081j).

8.5.13

• Fixed postcss-scss commend regression.

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.

8.5.8

• Fixed Processor#version.

8.5.7

• Improved source map annotation cleaning performance (by CodeAnt AI).

Changelog

Sourced from postcss's changelog.

8.5.15

• Fixed declaration parsing performance (by @​homanp).

8.5.14

• Fixed custom syntax regression (by @​43081j).

8.5.13

• Fixed postcss-scss commend regression.

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.

8.5.8

• Fixed Processor#version.

8.5.7

• Improved source map annotation cleaning performance (by CodeAnt AI).

Commits

• eae46db Release 8.5.15 version
• 79508ff Update CI actions
• b128e21 Speed up declaration parsing by avoiding creating new array on each token
• 9825dca Fix code format
• 55789c8 Update dependencies
• 84fbbe9 Install older pnpm action for old Node.js
• 9f860bd Revert pnpm action for old Node.js
• 0877198 Update CI actions
• b2d1a33 Fix linter warnings
• 0700dac Merge pull request #2088 from rootvector2/add-oss-fuzz-harness
• Additional commits viewable in compare view

[cypress]

Workday/canvas-kit    Run #10913

Run Properties:   Passed #10913  •  6010b31b9f ℹ️: Merge 9bcf65badbe078ca616a2a63fe9d780880c10ed2 into 7633fbb415cd6f549265955cd80e...

Project	Workday/canvas-kit
Branch Review	dependabot/npm_and_yarn/postcss-8.5.10
Run status	Passed #10913
Run duration	02m 22s
Commit	6010b31b9f ℹ️: Merge 9bcf65badbe078ca616a2a63fe9d780880c10ed2 into 7633fbb415cd6f549265955cd80e...
Committer	dependabot[bot]
View all properties for this run ↗︎

---

Test results
Failures	0
Flaky	0
Pending	17
Skipped	0
Passing	809
View all changes introduced in this branch ↗︎

UI Coverage  19.59%
Untested elements	1533
Tested elements	371

Accessibility  99.41%
Failed rules	5 critical   5 serious   0 moderate   2 minor
Failed elements	68