chore(deps-dev): bump postcss from 8.4.7 to 8.4.8 (#695)

Bumps [postcss](https://github.com/postcss/postcss) from 8.4.7 to 8.4.8.
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](https://github.com/postcss/postcss/compare/8.4.7...8.4.8)

---
updated-dependencies:
- dependency-name: postcss
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

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

package.json

@@ -38,7 +38,7 @@
 		"lint-staged": "^12.3.5",
 		"mocha": "^9.2.1",
 		"node-html-parser": "^5.2.0",
-		"postcss": "^8.4.7",
+		"postcss": "^8.4.8",
 		"postcss-load-config": "^3.1.3",
 		"prettier": "~2.5.1",
 		"prettier-plugin-svelte": "^2.6.0",

yarn.lock

@@ -3753,10 +3753,10 @@ postcss-value-parser@^4.1.0, postcss-value-parser@^4.2.0:
   resolved "https://registry.yarnpkg.com/postcss-value-parser/-/postcss-value-parser-4.2.0.tgz#723c09920836ba6d3e5af019f92bc0971c02e514"
   integrity sha512-1NNCs6uurfkVbeXG4S8JFT9t19m45ICnif8zWLd5oPSZ50QnwMfK+H3jv408d4jw/7Bttv5axS5IiHoLaVNHeQ==
 
-postcss@^8.3.0, postcss@^8.4.4, postcss@^8.4.6, postcss@^8.4.7:
-  version "8.4.7"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.7.tgz#f99862069ec4541de386bf57f5660a6c7a0875a8"
-  integrity sha512-L9Ye3r6hkkCeOETQX6iOaWZgjp3LL6Lpqm6EtgbKrgqGGteRMNb9vzBfRL96YOSu8o7x3MfIH9Mo5cPJFGrW6A==
+postcss@^8.3.0, postcss@^8.4.4, postcss@^8.4.6, postcss@^8.4.8:
+  version "8.4.8"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.8.tgz#dad963a76e82c081a0657d3a2f3602ce10c2e032"
+  integrity sha512-2tXEqGxrjvAO6U+CJzDL2Fk2kPHTv1jQsYkSoMeOis2SsYaXRO2COxTdQp99cYvif9JTXaAk9lYGc3VhJt7JPQ==
   dependencies:
     nanoid "^3.3.1"
     picocolors "^1.0.0"