Update dependency lodash to v4.17.20 (#265)

Co-authored-by: Renovate Bot <bot@renovateapp.com>

Author: renovate[bot]

package-lock.json

@@ -52,7 +52,7 @@
     "fs-extra": "9.0.1",
     "husky": "4.2.5",
     "jquery": "3.5.1",
-    "lodash": "4.17.19",
+    "lodash": "4.17.20",
     "node-sass": "4.14.1",
     "normalize.css": "8.0.1",
     "npm-run-all": "4.1.5",