Merge pull request #822 from textpattern/dependabot/npm_and_yarn/grunt-sass-4.0.1

Bump grunt-sass from 4.0.0 to 4.0.1

Author: petecooper

package.json

@@ -20,7 +20,7 @@
     "grunt-contrib-jshint": "3.2.0",
     "grunt-contrib-watch": "1.1.0",
     "grunt-replace-regex": "1.0.3",
-    "grunt-sass": "4.0.0",
+    "grunt-sass": "4.0.1",
     "grunt-stylelint": "0.20.1",
     "grunt-terser": "2.0.0",
     "load-grunt-tasks": "5.1.0",