chore(deps): bump lodash-es in /test/sass-loader-example

Bumps [lodash-es](https://github.com/lodash/lodash) from 4.17.15 to 4.17.21.
- [Release notes](https://github.com/lodash/lodash/releases)
- [Commits](lodash/lodash@4.17.15...4.17.21)

---
updated-dependencies:
- dependency-name: lodash-es
  dependency-type: direct:production
...

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

Author: dependabot[bot]

test/sass-loader-example/package-lock.json

@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "lodash-es": "^4.17.14",
+    "lodash-es": "^4.17.21",
     "react": "^16.6.3"
   }
 }