Bump lodash from 4.17.10 to 4.17.21 in /ClusteringExploration

Bumps [lodash](https://github.com/lodash/lodash) from 4.17.10 to 4.17.21.
- [Release notes](https://github.com/lodash/lodash/releases)
- [Commits](lodash/lodash@4.17.10...4.17.21)

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

Author: dependabot[bot]

ClusteringExploration/package-lock.json

@@ -5,7 +5,7 @@
     "alpha-shape": "^1.0.0",
     "d3-delaunay": "^4.1.5",
     "d3-polygon": "^1.0.3",
-    "lodash": "^4.17.10",
+    "lodash": "^4.17.21",
     "simple-statistics": "^6.1.0",
     "underscore": "^1.9.1"
   },