Bump d3 from 5.15.1 to 5.16.0

Bumps [d3](https://github.com/d3/d3) from 5.15.1 to 5.16.0.
- [Release notes](https://github.com/d3/d3/releases)
- [Changelog](https://github.com/d3/d3/blob/master/CHANGES.md)
- [Commits](https://github.com/d3/d3/compare/v5.15.1...v5.16.0)

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

package.json

@@ -81,7 +81,7 @@
     "cldr-localenames-full": "36.0.0",
     "colors": "^1.1.2",
     "concat-files": "^0.1.1",
-    "d3": "~5.15.0",
+    "d3": "~5.16.0",
     "editor-layer-index": "github:osmlab/editor-layer-index#gh-pages",
     "eslint": "^7.1.0",
     "gaze": "^1.1.3",