Merge pull request #6074 from github/dependabot/npm_and_yarn/lodash-4.17.21

Bump lodash from 4.17.20 to 4.17.21

Author: JamesMGreene

package-lock.json

@@ -66,7 +66,7 @@
     "js-yaml": "^3.14.0",
     "linkinator": "^2.13.6",
     "liquidjs": "^9.22.1",
-    "lodash": "^4.17.20",
+    "lodash": "^4.17.21",
     "lunr": "^2.3.9",
     "lunr-languages": "^1.4.0",
     "mdast-util-from-markdown": "^0.8.4",