Bump postcss-loader from 8.1.0 to 8.1.1

Bumps [postcss-loader](https://github.com/webpack-contrib/postcss-loader) from 8.1.0 to 8.1.1.
- [Release notes](https://github.com/webpack-contrib/postcss-loader/releases)
- [Changelog](https://github.com/webpack-contrib/postcss-loader/blob/master/CHANGELOG.md)
- [Commits](https://github.com/webpack-contrib/postcss-loader/compare/v8.1.0...v8.1.1)

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

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

package.json

@@ -55,7 +55,7 @@
     "lato-font": "^3.0.0",
     "mini-css-extract-plugin": "^2.8.0",
     "postcss": "^8.4.35",
-    "postcss-loader": "^8.1.0",
+    "postcss-loader": "^8.1.1",
     "postcss-scss": "^4.0.9",
     "sass": "^1.71.1",
     "sass-loader": "^14.1.1",