fix: upgrade d3-selection from 1.4.0 to 1.4.2

Snyk has created this PR to upgrade d3-selection from 1.4.0 to 1.4.2.

See this package in npm:
https://www.npmjs.com/package/d3-selection

See this project in Snyk:
https://app.snyk.io/org/gordonsmith/project/d41805b8-c920-4ec4-8247-a3be69d20a63?utm_source=github&utm_medium=referral&page=upgrade-pr

demos/dermatology/package.json

@@ -31,7 +31,7 @@
         "@hpcc-js/tree": "^2.7.10",
         "d3-collection": "1.0.7",
         "d3-random": "1.1.0",
-        "d3-selection": "1.4.0",
+        "d3-selection": "1.4.2",
         "d3-transition": "1.2.0",
         "es6-promise": "4.2.8"
     },