Merge pull request #5692 from plotly/bump-ws

Reinstall karma and bump jsdom to get ws 7.4.6 patch

Author: archmoj

package-lock.json

@@ -153,7 +153,7 @@
     "gzip-size": "^6.0.0",
     "into-stream": "^6.0.0",
     "jasmine-core": "^3.5.0",
-    "jsdom": "^16.5.3",
+    "jsdom": "^16.6.0",
     "karma": "^6.3.2",
     "karma-browserify": "^8.0.0",
     "karma-chrome-launcher": "^3.1.0",