Bump @fullhuman/postcss-purgecss from 3.1.3 to 5.0.0

Bumps [@fullhuman/postcss-purgecss](https://github.com/FullHuman/purgecss) from 3.1.3 to 5.0.0.
- [Release notes](https://github.com/FullHuman/purgecss/releases)
- [Changelog](https://github.com/FullHuman/purgecss/blob/main/CHANGELOG.md)
- [Commits](FullHuman/purgecss@v3.1.3...v5.0.0)

---
updated-dependencies:
- dependency-name: "@fullhuman/postcss-purgecss"
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

package.json

@@ -18,7 +18,7 @@
   "author": "Steven van der Vegt",
   "license": "ISC",
   "devDependencies": {
-    "@fullhuman/postcss-purgecss": "^3.1.3",
+    "@fullhuman/postcss-purgecss": "^5.0.0",
     "@vue/compiler-sfc": "^3.2.30",
     "api-spec-converter": "^2.12.0",
     "autoprefixer": "^10.4.13",