Bump postcss from 8.4.49 to 8.5.1 in /pkg/sass-parser (#2496)

Bumps [postcss](https://github.com/postcss/postcss) from 8.4.49 to 8.5.1.
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](postcss/postcss@8.4.49...8.5.1)

---
updated-dependencies:
- dependency-name: postcss
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

pkg/sass-parser/package.json

@@ -31,7 +31,7 @@
     "test": "jest"
   },
   "dependencies": {
-    "postcss": ">=8.4.41 <8.5.0",
+    "postcss": ">=8.4.41 <8.6.0",
     "sass": "file:../../build/npm"
   },
   "devDependencies": {