Merge pull request #4768 from plotly/bump-d3-force

Bump d3-force to v1.2.1

Author: archmoj

package-lock.json

@@ -67,8 +67,8 @@
     "color-rgba": "^2.1.1",
     "convex-hull": "^1.0.3",
     "country-regex": "^1.1.0",
-    "d3": "^3.5.12",
-    "d3-force": "^1.0.6",
+    "d3": "^3.5.17",
+    "d3-force": "^1.2.1",
     "d3-hierarchy": "^1.1.9",
     "d3-interpolate": "^1.4.0",
     "delaunay-triangulate": "^1.1.6",