Merge pull request #138 from lightspeedwp/dependabot/npm_and_yarn/gulp-sass-6.0.0

Bump gulp-sass from 5.1.0 to 6.0.0

Author: mergify[bot]

package.json

@@ -29,7 +29,7 @@
     "gulp-jshint": "^2.0.4",
     "gulp-plumber": "^1.1.0",
     "gulp-rename": "^2.0.0",
-    "gulp-sass": "^5.0.0",
+    "gulp-sass": "^6.0.0",
     "gulp-sort": "^2.0.0",
     "gulp-sourcemaps": "^3.0.0",
     "gulp-uglify": "^3.0.2",