Bump sass from 1.23.0 to 1.23.1 in /website/client (#11473)

Bumps [sass](https://github.com/sass/dart-sass) from 1.23.0 to 1.23.1.
- [Release notes](https://github.com/sass/dart-sass/releases)
- [Changelog](https://github.com/sass/dart-sass/blob/master/CHANGELOG.md)
- [Commits](https://github.com/sass/dart-sass/compare/1.23.0...1.23.1)

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

website/client/package.json

@@ -36,7 +36,7 @@
     "lodash": "^4.17.15",
     "moment": "^2.24.0",
     "nconf": "^0.10.0",
-    "sass": "^1.19.0",
+    "sass": "^1.23.1",
     "sass-loader": "^8.0.0",
     "smartbanner.js": "^1.14.5",
     "svg-inline-loader": "^0.8.0",