build(deps): bump lodash in /scripts/contributor-list

Bumps [lodash](https://github.com/lodash/lodash) from 4.17.19 to 4.17.21.
- [Release notes](https://github.com/lodash/lodash/releases)
- [Commits](lodash/lodash@4.17.19...4.17.21)

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

Author: dependabot[bot]

scripts/contributor-list/package-lock.json

@@ -5,7 +5,7 @@
   "main": "index.js",
   "license": "MIT",
   "dependencies": {
-    "lodash": "^4.17.19",
+    "lodash": "^4.17.21",
     "node-github-graphql": "^0.2.7"
   }
 }