Bump postcss from 7.0.35 to 8.2.8 (#435)

Bumps [postcss](https://github.com/postcss/postcss) from 7.0.35 to 8.2.8.
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](postcss/postcss@7.0.35...8.2.8)

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Romain Menke <11521496+romainmenke@users.noreply.github.com>

packages/pages/package.json

@@ -33,7 +33,7 @@
     "core-js": "^3.9.1",
     "cssnano": "^4.1.10",
     "polyfill-library": "^3.102.0",
-    "postcss": "^8.2.7",
+    "postcss": "^8.2.8",
     "postcss-import": "^14.0.0",
     "postcss-preset-env": "^6.7.0",
     "webpack": "^5.24.3",