build(deps): update lodash requirement

Updates the requirements on [lodash](https://github.com/lodash/lodash) to permit the latest version.
- [Release notes](https://github.com/lodash/lodash/releases)
- [Commits](lodash/lodash@4.17.15...4.17.21)

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

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

superset-frontend/plugins/legacy-preset-chart-deckgl/package.json

@@ -32,7 +32,7 @@
     "d3-color": "^1.4.1",
     "d3-scale": "^3.0.0",
     "deck.gl": "8.8.27",
-    "lodash": "^4.17.15",
+    "lodash": "^4.17.21",
     "moment": "^2.20.1",
     "mousetrap": "^1.6.1",
     "prop-types": "^15.6.0",