chore(package): update karma-chrome-launcher to version 3.1.0 (#545)

previously only updated to 3.0.0 by accident instead of 3.1.0

package.json

@@ -76,7 +76,7 @@
     "karma": "^4.1.0",
     "karma-base64-to-js-preprocessor": "^0.0.1",
     "karma-chai": "^0.1.0",
-    "karma-chrome-launcher": "^3.0.0",
+    "karma-chrome-launcher": "^3.1.0",
     "karma-firefox-launcher": "^1.0.0",
     "karma-mocha": "^1.1.1",
     "karma-mocha-reporter": "^2.0.4",