Bump sass-loader from 10.0.2 to 10.0.3 in /Rnwood.Smtp4dev/ClientApp

Bumps [sass-loader](https://github.com/webpack-contrib/sass-loader) from 10.0.2 to 10.0.3.
- [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@v10.0.2...v10.0.3)

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

Rnwood.Smtp4dev/ClientApp/package.json

@@ -40,7 +40,7 @@
     "core-js": "^3.6.5",
     "node-sass": "^4.14.1",
     "sass": "^1.26.11",
-    "sass-loader": "^10.0.2",
+    "sass-loader": "^10.0.3",
     "vue": "^2.6.12",
     "vue-class-component": "^7.2.6",
     "vue-property-decorator": "^9.0.0"