Bump source-map-loader from 1.1.3 to 2.0.0

Bumps [source-map-loader](https://github.com/webpack-contrib/source-map-loader) from 1.1.3 to 2.0.0.
- [Release notes](https://github.com/webpack-contrib/source-map-loader/releases)
- [Changelog](https://github.com/webpack-contrib/source-map-loader/blob/master/CHANGELOG.md)
- [Commits](https://github.com/webpack-contrib/source-map-loader/compare/v1.1.3...v2.0.0)

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

package.json

@@ -34,7 +34,7 @@
     "postcss-preset-env": "^6.7.0",
     "sass": "^1.30.0",
     "sass-loader": "^10.1.0",
-    "source-map-loader": "^1.1.3",
+    "source-map-loader": "^2.0.0",
     "style-loader": "^2.0.0",
     "stylelint": "^13.8.0",
     "stylelint-config-rational-order": "^0.1.2",