Bump cssnano from 5.0.9 to 5.0.10

Bumps [cssnano](https://github.com/cssnano/cssnano) from 5.0.9 to 5.0.10.
- [Release notes](https://github.com/cssnano/cssnano/releases)
- [Commits](https://github.com/cssnano/cssnano/compare/cssnano@5.0.9...cssnano@5.0.10)

---
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

@@ -24,7 +24,7 @@
     "confusing-browser-globals": "^1.0.10",
     "copy-webpack-plugin": "^9.0.1",
     "css-loader": "^6.5.0",
-    "cssnano": "^5.0.9",
+    "cssnano": "^5.0.10",
     "eslint": "^7.32.0",
     "eslint-plugin-compat": "^3.13.0",
     "eslint-plugin-eslint-comments": "^3.2.0",