Merge pull request #183 from q2g/renovate/sass-loader-8.x

Update dependency sass-loader to v8

Author: r-hannuschka

src/package-lock.json

@@ -33,7 +33,7 @@
     "node-sass": "^4.12.0",
     "path-override-webpack-plugin": "0.1.2",
     "raw-loader": "4.0.0",
-    "sass-loader": "7.3.1",
+    "sass-loader": "8.0.2",
     "style-loader": "0.23.1",
     "terser-webpack-plugin": "^2.0.0",
     "ts-loader": "5.4.5",