build(deps-dev): bump lodash from 4.17.20 to 4.17.21

Bumps [lodash](https://github.com/lodash/lodash) from 4.17.20 to 4.17.21.
- [Release notes](https://github.com/lodash/lodash/releases)
- [Commits](lodash/lodash@4.17.20...4.17.21)

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

package-lock.json

@@ -78,7 +78,7 @@
     "html-webpack-plugin": "^4.5.0",
     "jest": "^26.5.3",
     "json-loader": "^0.5.7",
-    "lodash": "^4.17.20",
+    "lodash": "^4.17.21",
     "null-loader": "^4.0.0",
     "prepack-webpack-plugin": "^1.1.2",
     "prettier": "^2.1.2",