chore(package): update karma-chrome-launcher to version 3.1.0

Closes #90

Author: greenkeeper[bot]

package.json

@@ -21,7 +21,7 @@
     "istanbul": "^0.4.5",
     "jasmine-core": "^3.4.0",
     "karma": "^4.1.0",
-    "karma-chrome-launcher": "^2.2.0",
+    "karma-chrome-launcher": "^3.1.0",
     "karma-coverage": "^1.1.2",
     "karma-firefox-launcher": "^1.1.0",
     "karma-jasmine": "^2.0.0",