chore(deps): update dependency sass-loader to v7.2.0

Author: renovate-bot

package.json

@@ -33,7 +33,7 @@
     "file-loader": "3.0.1",
     "node-sass": "4.11.0",
     "optimize-css-assets-webpack-plugin": "5.0.1",
-    "sass-loader": "7.1.0",
+    "sass-loader": "7.2.0",
     "vue": "2.5.22",
     "vue-loader": "15.6.2",
     "vue-template-compiler": "2.5.22",