Bump lodash from 4.17.11 to 4.17.21

Bumps [lodash](https://github.com/lodash/lodash) from 4.17.11 to 4.17.21.
- [Release notes](https://github.com/lodash/lodash/releases)
- [Commits](lodash/lodash@4.17.11...4.17.21)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package-lock.json

@@ -86,7 +86,7 @@
     "is-builtin-module": "^1.0.0",
     "jsdom": "^11.2.0",
     "json-stringify-pretty-compact": "^1.0.4",
-    "lodash": "^4.16.0",
+    "lodash": "^4.17.21",
     "minifyify": "^7.0.1",
     "mock-geolocation": "^1.0.11",
     "npm-run-all": "^4.0.1",