Bump sass-loader from 13.3.3 to 14.2.0

Bumps [sass-loader](https://github.com/webpack-contrib/sass-loader) from 13.3.3 to 14.2.0.
- [Release notes](https://github.com/webpack-contrib/sass-loader/releases)
- [Changelog](https://github.com/webpack-contrib/sass-loader/blob/master/CHANGELOG.md)
- [Commits](webpack-contrib/sass-loader@v13.3.3...v14.2.0)

---
updated-dependencies:
- dependency-name: sass-loader
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

package.json

@@ -20,7 +20,7 @@
     "per-env": "^1.0.2",
     "preact-cli": "^3.0.0-rc.6",
     "preact-render-spy": "^1.3.0",
-    "sass-loader": "^13.2.0"
+    "sass-loader": "^14.2.0"
   },
   "dependencies": {
     "@fortawesome/fontawesome-svg-core": "^6.2.1",