build(deps-dev): Bump cssnano from 6.0.1 to 6.0.2

Bumps [cssnano](https://github.com/cssnano/cssnano) from 6.0.1 to 6.0.2.
- [Release notes](https://github.com/cssnano/cssnano/releases)
- [Commits](https://github.com/cssnano/cssnano/compare/cssnano@6.0.1...cssnano@6.0.2)

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

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

package.json

@@ -13,7 +13,7 @@
         "browserlist": "^1.0.1",
         "compression-webpack-plugin": "^10.0.0",
         "css-loader": "^6.8.1",
-        "cssnano": "^6.0.1",
+        "cssnano": "^6.0.2",
         "eslint": "^8.55.0",
         "eslint-webpack-plugin": "^4.0.1",
         "mini-css-extract-plugin": "^2.7.6",